Perhaps you should try some spelling variations:
"dung toan dat slippers" » "dung doanh dat slippers", "dung thang dat slippers", "dung thanh dat slippers", "dung toan dam slippers", "dung toan dai slippers", "dung tan dat slippers", "dung toan dat slippery", "dung toan 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: (((("dung toan 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: (((("dung toan dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung toan dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung toan dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.