Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung luc nhan slippers" » "dong luc nhan slippers", "dung luan nhan slippers", "trung luc nhan slippers", "dung luc nhat slippers", "dung cu nhan slippers", "dung tue nhan slippers", "dung luc nhan slippery", "dung luc nhan 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 luc nhan 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 luc nhan slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung luc nhan slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung luc nhan slippers"))) or ("locating bug code snippets"))*.