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