Perhaps you should try some spelling variations:
"dung dan phong slippers" » "dung dan phuong slippers", "dung van phong slippers", "dung dai phong slippers", "dung dat phong slippers", "dung san phong slippers", "tung dan phong slippers", "dung dan phong slippery", "dung dan phong 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 dan phong 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 dan phong slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dan phong slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dan phong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.