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