Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung do van slippers" » "dung doi van slippers", "dung co van slippers", "dung de van slippers", "dung dao van slippers", "dung vo van slippers", "dung so van slippers", "dung do van slippery", "dung do van 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 do van 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 do van slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung do van slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung do van slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.