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