Perhaps you should try some spelling variations:
"trinh duy dat slippers" » "trinh duc dat slippers", "trinh dung dat slippers", "trinh thuy dat slippers", "trinh duy vat slippers", "trinh quy dat slippers", "trinh duy dac slippers", "trinh duy dat slippery", "trinh duy 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: (((("trinh duy dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh duy dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh duy dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh duy dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.