Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh mang » nhanh mang, hanh trang, nhanh lang
dang cong » dung cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh cha » thanh ha, thanh nha, thanh phan
hieu van » hieu va, thien van, lieu va
mang van » dang van, tang van, lang van
van dang » van dong, van dung, van nang
cong tan » cong tac, cong san, cong thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu van) or (chieu sang)) - hanh mang van dang cong tan thanh cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu van) OR (chieu sang)) - hanh mang van dang cong tan thanh cha*.