Perhaps you should try some spelling variations:
hien manh » tien manh, hieu manh, hien nhanh
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
tang cua » mang cua, hang cua, tang luan
cong ban » cong bang, cong san, cong tan
ban hang » ngan hang
hang ca » hang va, nang cao, hang tai

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 manh) or (hien hanh)) - thanh ((tang cua) or (trung cua)) trong cong ban hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (hien hanh)) - thanh ((tang cua) OR (trung cua)) trong cong ban hang ca.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (hien hanh)) - thanh ((tang cua) or (trung cua)) trong cong ban hang ca*.