Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"vu cong code snippets" » "vu cong cong snippets", "vu cong co snippets", "vu cong che snippets", "va cong code snippets", "tu cong code snippets", "cua cong code snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vu cong code snippets") or ("using java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vu cong code snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( vu cong code snippets ) or ( using java java snippets ))) or ( locating bug core snippets ))*.