Perhaps you should try some spelling variations:
"trinh chap dat slippers" » "trinh chat dat slippers", "tranh chap dat slippers", "trinh chao dat slippers", "trinh phap day slippers", "trinh cai dat slippers", "trinh lap dat slippers", "trinh chap dat slippery", "trinh chap dat grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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