Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung bo trong slippers" » "dung bo truong slippers", "dung bao trong slippers", "dung ro trong slippers", "dung co trong slippers", "dung mo trong slippers", "dung bo trong slippery", "dung bo trong 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: (((("dung bo trong 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 bo trong slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bo trong slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bo trong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.