Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhan tuong » nhan trong, nhan thong, nhan tong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
hoc hieu » hoc thieu, hoc hien, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - thanh trung cua ((han tong) or (nhan tuong)) van thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh trung cua ((han tong) OR (nhan tuong)) van thanh cau*.