Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
manh trung » manh tung, thanh trung, manh hung
trung cua » truong cua, trung tuan, trung cap
tong cong » cong cong, dung cong, dang cong
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - manh trung cua ((tong cong) OR (trong cong)) van ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - manh trung cua ((tong cong) OR (trong cong)) van ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - manh trung cua ((tong cong) OR (trong cong)) van ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - manh trung cua ((tong cong) OR (trong cong)) van ((than cau) or (than cap))*.