Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh cac » hanh cac, thanh bac, thanh ca
hoc hieu » hoc thieu, hoc hien, doc hieu
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, than cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - manh ((tung cua) OR (dung cua)) nhung cong dan ((than cap) OR (thanh cac))~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - manh ((tung cua) or (dung cua)) nhung cong dan ((than cap) or (thanh cac))*.