Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"can tac dan snippets" » "canh tac dan snippets", "cac tac dan snippets", "cong tac dan snippets", "can tac danh snippets", "can cac dan snippets", "can tac da snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("can tac dan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( can tac dan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("can tac dan snippets"))) or ("locating bug core snippets"))*.