Perhaps you should try some spelling variations:
"dang khoi trinh slippers" » "dang khoi tinh slippers", "dang hoi tinh slippers", "dang khoi kinh slippers", "dung khoa trinh slippers", "hang khoa trinh slippers", "dang khoi trinh slippery", "dang khoi 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: (((("dang khoi 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: (((("dang khoi trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang khoi trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang khoi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.