Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung hat nhan slippers" » "dung chat nhan slippers", "dung nhat nhan slippers", "dung phat nhan slippers", "dung ca nhan slippers", "dung van nhan slippers", "dung ban nhan slippers", "dung hat nhan slippery", "dung hat nhan 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 hat nhan 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 hat nhan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hat nhan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hat nhan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.