Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"ban linh trac slippers" » "ban sinh trac slippers", "ban anh trac slippers", "ban li trac slippers", "ban tinh trac slippers", "van linh trac slippers", "tran linh trac slippers", "ban linh trac slippery", "ban linh 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: (((("dung java java snippets") or ("ban linh trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("ban linh trac slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( ban linh trac slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("ban linh trac slippers"))) or ("locating bug code snippets"))*.