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