Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tu trong slippers" » "dung tu tuong slippers", "dung tu tieng slippers", "dung thu trong slippers", "dung tru trong slippers", "dung cu trong slippers", "dung tu trong slippery", "dung tu 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 tu 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 tu trong slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tu trong slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tu trong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.