Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using cao chu snippets" » "using a chu snippets", "using two chu snippets", "using c chu snippets", "using chao chu snippets", "using cao cho snippets", "using cho chu 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 cao chu snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cao chu snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using cao chu snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using cao chu snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.