Perhaps you should try some spelling variations:
"dung thang gian slippers" » "hung thang gian slippers", "cung thang gian slippers", "dung thuong gian slippers", "dung thanh gian slippers", "dung thanh giang slippers", "dung thang gieng slippers", "dung thang gian slippery", "dung thang gian 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 ("dung thang gian slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung thang gian slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung thang gian slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung thang gian slippers"))) or ("locating bug code snippets"))*.