Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
dang nong » dang cong, hang nong, tang nong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
nong dan » cong dan, nong san, nguong dan
than cao » toan cao, thai cao, than sao
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan 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: theo chieu tinh - anh tang cua dang nong dan ((than cao) OR (((than cap) OR (khan cap))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - anh tang cua dang nong dan ((than cao) or (((than cap) OR (khan cap))))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - anh tang cua dang nong dan ((than cao) or (((than cap) OR (khan cap))))*.