Perhaps you should try some spelling variations:
"dung phan trinh snippets" » "dung thanh trinh snippets", "dung phan tich snippets", "dung hanh trinh snippets", "dung nhan trinh snippets", "dung luan trinh snippets", "dung ha trinh snippets", "dung phan trinh slippers"
"dung hung code snippets" » "dung chung code snippets", "dung nhung code snippets", "dung huong code snippets", "dung hung code slippers"
"locating bug code snippets" » "locating bug code slippers", "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 hung code snippets") or ("dung phan trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hung code snippets") OR ("dung phan trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hung code snippets ) or ( dung phan trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hung code snippets") or ("dung phan trinh snippets"))) or ("locating bug code snippets"))*.