Perhaps you should try some spelling variations:
"trinh phan phan slippers" » "trinh han phan slippers", "trinh quan phan slippers", "thanh phan phan slippers", "trinh phap phan slippers", "trinh phan phat slippers", "trinh than phan slippers", "trinh phan phan slippery", "trinh phan phan grippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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 phan phan slippers") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh phan phan slippers") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh phan phan slippers ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh phan phan slippers") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.