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