Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"
"tran mach do snippets" » "tran manh do snippets", "trinh mach do snippets", "trong mach do snippets", "tran mach so snippets", "tran mach o snippets", "tran sach dao snippets"

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 ("tran mach do snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran mach do snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran mach do snippets"))) or ("locating bugs code snippets"))*.