Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cac ngoc slippers" » "luong cac ngoc slippers", "dung cho ngoc slippers", "dung tai ngoc slippers", "dung cac nuoc slippers", "dung cao ngoc slippers", "dung van ngoc slippers", "dung cac ngoc slippery", "dung cac ngoc 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 cac ngoc 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 cac ngoc slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac ngoc slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac ngoc slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.