Perhaps you should try some spelling variations:
"van trinh java snippets" » "van thinh java snippets", "van tinh java snippets", "dan trinh java snippets"
"locating bug core snippets" » "locating bug code snippets"
"using c code snippets" » "using lc code snippets", "using a code snippets", "using _ code snippets", "using cfd 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 c code snippets") OR ("van trinh java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( van trinh java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("van trinh java snippets"))) or ("locating bug core snippets"))*.