Perhaps you should try some spelling variations:
"nhan nhanh trac slippers" » "nhanh thanh trac slippers", "nhat hanh trac slippers", "nhan khanh trach slippers", "nhan thanh tra slippers", "nhan nhanh thuc slippers", "nhan nhanh trac slippery", "nhan nhanh 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: (((("nhan nhanh trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan nhanh trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan nhanh trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan nhanh trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.