Perhaps you should try some spelling variations:
"khoan dung dat slippers" » "khoa dung dat slippers", "chan dung dat slippers", "hoang dung dat slippers", "khoan dung va slippers", "khoan dung tai slippers", "khoan dung dat slippery", "khoan dung 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 ("khoan dung 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 ("khoan dung dat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( khoan dung dat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("khoan dung dat slippers"))) or ("locating bug code snippets"))*.