Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung len duoc slippers" » "dung nen duoc slippers", "dung le duoc slippers", "dung luan duoc slippers", "dung bien duoc slippers", "dung len duong slippers", "dung te duoc slippers", "dung len duoc slippery", "dung len duoc 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 len duoc 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 len duoc slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung len duoc slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung len duoc slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.