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