Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh mang » nhanh mang, hanh trang, nhanh lang
hang cong » dang cong, hang nong, bang cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh cha » thanh ha, thanh nha, thanh phan
hieu cac » hieu luc, hieu va, hieu van
cong tan » cong tac, cong san, cong thanh
mang va » mang vua, hang va, bang va
va hang » van hang, va nang, va lang

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: toc ((hieu cac) OR (chieu sach)) - hanh mang va hang cong tan thanh cha~.
• Adding a wildcard symbol may retrieve word variants: toc ((hieu cac) or (chieu sach)) - hanh mang va hang cong tan thanh cha*.