Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung quan lan slippers" » "dung quang lan slippers", "dung luan lan slippers", "luong quan lan slippers", "dung quan luan slippers", "dung quan lang slippers", "dung quan van slippers", "dung quan lan slippery", "dung quan lan 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 ("dung quan lan slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung quan lan slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung quan lan slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung quan lan slippers"))) or ("locating bug code snippets"))*.