Perhaps you should try some spelling variations:
"dung toi trinh slippers" » "dung thi trinh slippers", "dung doi trinh slippers", "dung toi tinh slippers", "dung thoi trinh slippers", "dung tai trinh slippers", "dung toi trinh slippery", "dung toi 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: (((("dung toi 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: (((("dung toi trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung toi trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung toi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.