Perhaps you should try some spelling variations:
"trinh hoa thinh slippers" » "trinh do thinh slippers", "trinh han thinh slippers", "trinh hoa hinh slippers", "trinh hoa tinh slippers", "trinh hoa thanh slippers", "trinh hoa thinh slippery", "trinh hoa thinh 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: (((("trinh hoa thinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh hoa thinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh hoa thinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh hoa thinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.