Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using quan che snippets" » "using quan code snippets", "uong quan che snippets", "sinh quan che snippets", "using quan he snippets", "using han che snippets", "using quan ha 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 quan che 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 quan che snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using quan che snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using quan che snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.