Perhaps you should try some spelling variations:
nhanh dung » nhanh dong, hanh dung, nhanh hung
thong cong » trong cong, thong thong, phong chong
tong cong » trong cong, cong cong, dung cong
thu bang » thu ban, chu bang, thu trang
thu hang » thi hang, thuc hanh, thu huong
dung cua » dung luan, dung cho
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((thu bang) or (thu hang)) - nhanh dung cua ((thong cong) or (tong cong)) san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thu bang) OR (thu hang)) - nhanh dung cua ((thong cong) OR (tong cong)) san toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((thu bang) or (thu hang)) - nhanh dung cua ((thong cong) or (tong cong)) san toan cao*.