Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"phong le trac slippers" » "thong le trac slippers", "hong le trac slippers", "trong le trac slippers", "phong li trac slippers", "phong le trang slippers", "phong le trac slippery", "phong le trac grippers"
"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: (((("phong le trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phong le trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong le trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong le trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.