Perhaps you should try some spelling variations:
"dang vinh dat slippers" » "dang dinh dat slippers", "dang sinh dat slippers", "dang tinh dat slippers", "dang chinh dat slippers", "dang dinh doat slippers", "dang vinh dat slippery", "dang vinh 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: (((("dang vinh 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: (((("dang vinh dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang vinh dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang vinh dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.