Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan ap robot slippers" » "dan a robot slippers", "dan tao robot slippers", "dan tay robot slippers", "dan lap robot slippers", "dan ap robot slippery", "dan ap robot 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 ap robot 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 ap robot slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan ap robot slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan ap robot slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.