Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cu len slippers" » "dung cua len slippers", "dung co len slippers", "dung cho len slippers", "dung u len slippers", "dung cuoi len slippers", "dung cu len slippery", "dung cu len 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: (((("dung cu len 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 cu len slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cu len slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cu len slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.