Perhaps you should try some spelling variations:
"cuong sinh trac slippers" » "cuong linh trac slippers", "duong sinh trac slippers", "luong sinh trac slippers", "cuong sinh thai slippers", "cuong sinh thuc slippers", "cuong anh trac slippers", "cuong sinh trac slippery", "cuong sinh trac grippers"
"dung java java snippets" » "dung va java snippets"
"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 ("cuong sinh trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cuong sinh trac slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cuong sinh trac slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cuong sinh trac slippers"))) or ("locating bug code snippets"))*.