Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using dao cau snippets" » "using data cau snippets", "using a cau snippets", "using two cau snippets", "using dat cau snippets", "using da cau snippets", "using tao cau 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 dao cau 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 dao cau snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using dao cau snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using dao cau snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.