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