Perhaps you should try some spelling variations:
"dung vung theo slippers" » "dung ung theo slippers", "dung dung theo slippers", "dung hung theo slippers", "dung sung theo slippers", "dung luong theo slippers", "dung vung theo slippery", "dung vung theo 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 vung theo 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 vung theo slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vung theo slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vung theo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.