Perhaps you should try some spelling variations:
"trinh hang dam slippers" » "trinh han dam slippers", "tranh hang dam slippers", "trinh hanh dam slippers", "trinh chang dam slippers", "trinh hang dau slippers", "trinh hang nam slippers", "trinh hang dam slippery", "trinh hang dam 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 hang dam 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 hang dam slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh hang dam slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh hang dam slippers"))) or ("locating bug code snippets"))*.