Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thanh tung » thanh cong
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu lang » chieu sang, hieu quang, nhieu tang
thanh cac » hanh cac, thanh bac, thanh ca
hoi hieu » hoi phieu, hoi tieu, moi hieu
tung cua » trung cua, tuong cua, dung cua
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: hoi hieu lang - thanh tung cua phuong cong dan ((phan tu) OR (((than cap) OR (thanh cac))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi hieu lang - thanh tung cua phuong cong dan ((phan tu) or (((than cap) OR (thanh cac))))~".
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - thanh tung cua phuong cong dan ((phan tu) or (((than cap) OR (thanh cac))))*.