Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung tao zhang snippets" » "dung tao khoang snippets", "dung tao nhan snippets", "dung tai zhang snippets", "dung bao zhang snippets", "dung tay zhang snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung tao zhang snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tao zhang snippets") OR ("dung java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung tao zhang snippets ) or ( dung java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tao zhang snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))*.