Perhaps you should try some spelling variations:
"dung cac phan slippers" » "luong cac phan slippers", "dung cho phan slippers", "dung tai phan slippers", "dung cac nhan slippers", "dung cao phan slippers", "dung cap phan slippers", "dung cac phan slippery", "dung cac phan grippers"
"dung cu code snippets" » "dung cua code snippets", "dung co code snippets", "dung cho code snippets", "dung cfd code 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: (((("dung cac phan slippers") or ("dung cu code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac phan slippers") OR ("dung cu code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac phan slippers ) or ( dung cu code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac phan slippers") or ("dung cu code snippets"))) or ("locating bug code snippets"))*.