Perhaps you should try some spelling variations:
thanh trung » thanh tung
hiem ngan » kim ngan, viem gan
trung cua » truong cua, trung tuan, trung cap
nong cong » cong cong, tong cong, nang cong
thanh lap » thanh san, phan lap, thanh hai
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 cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh cac, 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 hiem ngan - thanh trung cua nong cong dan ((than cau) OR (((than cap) OR (thanh lap))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hiem ngan - thanh trung cua nong cong dan ((than cau) or (((than cap) OR (thanh lap))))~".
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - thanh trung cua nong cong dan ((than cau) or (((than cap) OR (thanh lap))))*.