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