Perhaps you should try some spelling variations:
"dung nhat nheo slippers" » "dung nhan nheo slippers", "dang nhat nheo slippers", "dung nha nheo slippers", "dung nhat theo slippers", "dung nhan nho slippers", "dung hat cheo slippers", "dung nhat nheo slippery", "dung nhat nheo 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 nhat nheo 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 nhat nheo slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nhat nheo slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nhat nheo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.