Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh chau » thanh cha, thanh cham, thanh chu
hiem ngan » kim ngan, viem gan
trung cua » truong cua, trung tuan, trung cap
nong cong » cong cong, tong cong, nang cong
hoc hiem » hoc hien, hoc thieu, hoc thiet
cua nong » cua cong, cuu nong, cua dong
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac

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 hiem ngan - thanh trung cua nong cong dan ((thanh chau) OR (than cap))~.
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - thanh trung cua nong cong dan ((thanh chau) or (than cap))*.