Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"cong gian don snippets" » "chong gian don snippets", "con gian don snippets", "cong giao don snippets", "cong gian dan snippets", "cong giang son snippets", "cong gian dien snippets"
"locating bug core snippets" » "locating bug code 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 ("cong gian don snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( cong gian don snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("cong gian don snippets"))) or ("locating bug core snippets"))*.