Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"tan van hieu snippets" » "tan cao hieu snippets", "tran van hieu snippets", "tang van hieu snippets", "luan van hieu snippets", "tan van hieu slippers"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tan van hieu snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tan van hieu snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tan van hieu snippets"))) or ("locating bugs code snippets"))*.