Perhaps you should try some spelling variations:
"dung huong code snippets" » "dung thuong code snippets", "dung phuong code snippets", "dong huong code snippets", "dung huong co snippets", "dung huong com snippets", "dung huong code slippers"
"trinh doc dat snippets" » "trinh do dat snippets", "trinh hoa dat snippets", "trinh co dat snippets", "trinh duoc dat snippets", "trinh hoc dat snippets", "trinh doc dao snippets", "trinh doc dat 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: (((("trinh doc dat snippets") or ("dung huong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh doc dat snippets") OR ("dung huong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh doc dat snippets ) or ( dung huong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh doc dat snippets") or ("dung huong code snippets"))) or ("locating bug code snippets"))*.