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