Perhaps you should try some spelling variations:
"trinh nhan dat slippers" » "trinh han dat slippers", "trinh phan dat slippers", "trinh nha dat slippers", "trinh nhan dan slippers", "trinh nhan vat slippers", "trinh nhan dai slippers", "trinh nhan dat slippery", "trinh nhan dat 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 nhan dat 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 nhan dat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh nhan dat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh nhan dat slippers"))) or ("locating bug code snippets"))*.