Perhaps you should try some spelling variations:
"va trong cong snippets" » "va trong code snippets", "va truong cong snippets", "va thong cong snippets", "va tuong cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing 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: (((("using data java snippets") or ("va trong cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data java snippets") OR ("va trong cong snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( va trong cong snippets ))) or ( locating bug core snippets ))*.