Perhaps you should try some spelling variations:
"lang dung dat slippers" » "dang dung dat slippers", "lan dung dat slippers", "lang dong dat slippers", "lang dung va slippers", "lang dung tai slippers", "lang dung dat slippery", "lang dung 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: (((("lang dung 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: (((("lang dung dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang dung dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang dung dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.