Perhaps you should try some spelling variations:
"va ban cong snippets" » "va ban code snippets", "va bang cong snippets", "va van cong snippets", "va phan cong snippets", "van ban cong snippets", "va bai cong snippets", "va bao cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"

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

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