Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh hat phat slippers" » "trinh chat phat slippers", "trinh phat phat slippers", "trinh nhat phat slippers", "trinh thuat phat slippers", "trinh phap phat slippers", "trinh hang phat slippers", "trinh hat phat slippery", "trinh hat phat 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 hat phat 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 hat phat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh hat phat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh hat phat slippers"))) or ("locating bug code snippets"))*.