Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cuon danh mach slippers" » "cuong danh mach slippers", "cuoi dan mach slippers", "cuon sach mach slippers", "cuon ranh mach slippers", "cuon danh muc slippers", "cuon ban mach slippers", "cuon danh mach slippery", "cuon danh mach 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 java java snippets") or ("cuon danh mach slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cuon danh mach slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cuon danh mach slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cuon danh mach slippers"))) or ("locating bug code snippets"))*.