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