Perhaps you should try some spelling variations:
"nang hanh trinh slippers" » "nang canh tranh slippers", "nang hanh chinh slippers", "nang thanh trinh slippers", "dang hanh trinh slippers", "nang hang trinh slippers", "nang hanh trinh slippery", "nang hanh 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: (((("nang hanh 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: (((("nang hanh trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang hanh trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang hanh trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.