Perhaps you should try some spelling variations:
"dung dich tu slippers" » "luong dich tu slippers", "hang dich tu slippers", "dung dich vu slippers", "dung dich te slippers", "dung dinh tu slippers", "dung dich tu slippery", "dung dich tu 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"

Try widening your search to All Fields.

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

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