Perhaps you should try some spelling variations:
"nhan dan trinh slippers" » "nhan dan tinh slippers", "nhan van trinh slippers", "nhan hanh trinh slippers", "phan dau trinh slippers", "gian dan trinh slippers", "nhan tai trinh slippers", "nhan dan trinh slippery", "nhan dan trinh 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 dan trinh 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 dan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan dan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.