diff --git a/src/main/java/com/nis/web/service/configuration/AppMultiFeatureCfgService.java b/src/main/java/com/nis/web/service/configuration/AppMultiFeatureCfgService.java
index e57c58b2a..5b105e535 100644
--- a/src/main/java/com/nis/web/service/configuration/AppMultiFeatureCfgService.java
+++ b/src/main/java/com/nis/web/service/configuration/AppMultiFeatureCfgService.java
@@ -114,38 +114,38 @@ public class AppMultiFeatureCfgService extends BaseService {
 							String keyword = "";
 							if(cfg.getHeaderType().equals("IP_header")){
 								if(StringUtils.isNoneBlank(cfg.getVer())){
-									keyword += "0-3:"+cfg.getVer()+"***and***";
+									keyword += "0-3:"+cfg.getVer()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getIhl())){
-									keyword += "4-7:"+cfg.getIhl()+"***and***";
+									keyword += "4-7:"+cfg.getIhl()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getTos())){
-									keyword += "8-15:"+cfg.getTos()+"***and***";
+									keyword += "8-15:"+cfg.getTos()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getTotalLength())){
-									keyword += "16-31:"+cfg.getTotalLength()+"***and***";
+									keyword += "16-31:"+cfg.getTotalLength()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getFlags())){
-									keyword += "48-50:"+cfg.getFlags()+"***and***";
+									keyword += "48-50:"+cfg.getFlags()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getFragmentOffset())){
-									keyword += "56-63:"+cfg.getFragmentOffset()+"***and***";
+									keyword += "56-63:"+cfg.getFragmentOffset()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getProtocol())){
-									keyword += "72-79:"+cfg.getProtocol()+"***and***";
+									keyword += "72-79:"+cfg.getProtocol()+Constants.KEYWORD_EXPR;
 								}
 							}else{
 								if(StringUtils.isNoneBlank(cfg.getIcmpType())){
-									keyword += "0-7:"+cfg.getIcmpType()+"***and***";
+									keyword += "0-7:"+cfg.getIcmpType()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getIcmpCode())){
-									keyword += "8-15:"+cfg.getIcmpCode()+"***and***";
+									keyword += "8-15:"+cfg.getIcmpCode()+Constants.KEYWORD_EXPR;
 								}
 								if(StringUtils.isNotBlank(cfg.getIcmpIdentifier())){
-									keyword += "32-47:"+cfg.getIcmpIdentifier()+"***and***";
+									keyword += "32-47:"+cfg.getIcmpIdentifier()+Constants.KEYWORD_EXPR;
 								}
 							}
-							keyword=keyword.substring(0,keyword.lastIndexOf("***and***"));
+							keyword=keyword.substring(0,keyword.lastIndexOf(Constants.KEYWORD_EXPR));
 							cfg.setCfgKeywords(keyword);
 							appMultiFeatureCfgDao.insertAppComplexFeatureCfg(cfg);
 						}else if(StringUtils.isNotBlank(cfg.getCfgKeywords())){
@@ -208,38 +208,38 @@ public class AppMultiFeatureCfgService extends BaseService {
 						String keyword = "";
 						if(cfg.getHeaderType().equals("IP_header")){
 							if(StringUtils.isNoneBlank(cfg.getVer())){
-								keyword += "0-3:"+cfg.getVer()+"***and***";
+								keyword += "0-3:"+cfg.getVer()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getIhl())){
-								keyword += "4-7:"+cfg.getIhl()+"***and***";
+								keyword += "4-7:"+cfg.getIhl()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getTos())){
-								keyword += "8-15:"+cfg.getTos()+"***and***";
+								keyword += "8-15:"+cfg.getTos()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getTotalLength())){
-								keyword += "16-31:"+cfg.getTotalLength()+"***and***";
+								keyword += "16-31:"+cfg.getTotalLength()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getFlags())){
-								keyword += "48-50:"+cfg.getFlags()+"***and***";
+								keyword += "48-50:"+cfg.getFlags()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getFragmentOffset())){
-								keyword += "56-63:"+cfg.getFragmentOffset()+"***and***";
+								keyword += "56-63:"+cfg.getFragmentOffset()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getProtocol())){
-								keyword += "72-79:"+cfg.getProtocol()+"***and***";
+								keyword += "72-79:"+cfg.getProtocol()+Constants.KEYWORD_EXPR;
 							}
 						}else{
 							if(StringUtils.isNoneBlank(cfg.getIcmpType())){
-								keyword += "0-7:"+cfg.getIcmpType()+"***and***";
+								keyword += "0-7:"+cfg.getIcmpType()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getIcmpCode())){
-								keyword += "8-15:"+cfg.getIcmpCode()+"***and***";
+								keyword += "8-15:"+cfg.getIcmpCode()+Constants.KEYWORD_EXPR;
 							}
 							if(StringUtils.isNotBlank(cfg.getIcmpIdentifier())){
-								keyword += "32-47:"+cfg.getIcmpIdentifier()+"***and***";
+								keyword += "32-47:"+cfg.getIcmpIdentifier()+Constants.KEYWORD_EXPR;
 							}
 						}
-						keyword=keyword.substring(0,keyword.lastIndexOf("***and***"));
+						keyword=keyword.substring(0,keyword.lastIndexOf(Constants.KEYWORD_EXPR));
 						cfg.setCfgKeywords(keyword);
 						appMultiFeatureCfgDao.insertAppComplexFeatureCfg(cfg);
 					}else if(StringUtils.isNotBlank(cfg.getCfgKeywords())){