Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh doc va slippers" » "trinh do va slippers", "trinh hoa va slippers", "trinh co va slippers", "trinh duoc va slippers", "trinh hoc va slippers", "trinh duc va slippers", "trinh doc va slippery", "trinh doc va 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 ("trinh doc va slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh doc va slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh doc va slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh doc va slippers"))) or ("locating bug code snippets"))*.