Perhaps you should try some spelling variations:
"danh thinh duc slippers" » "danh thanh duc slippers", "danh thin duc slippers", "manh thinh duc slippers", "danh tinh duc slippers", "danh trinh duc slippers", "danh trinh duoc slippers", "danh thinh duc slippery", "danh thinh duc 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 ("danh thinh duc slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("danh thinh duc slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( danh thinh duc slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("danh thinh duc slippers"))) or ("locating bug code snippets"))*.