Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
canh trang » canh tranh, hanh trang, banh trang
thanh chau » thanh cha, thanh cham, thanh chu
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
trang va » tran van, hang va
cong san » cong tac
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
va dung » van dung, va duong, vat dung

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 thieu tinh - canh trang va dung cong san ((thanh chau) OR (((phan cau) OR (phan cac))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - canh trang va dung cong san ((thanh chau) or (((phan cau) OR (phan cac))))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh trang va dung cong san ((thanh chau) or (((phan cau) OR (phan cac))))*.