Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
cong hanh » cong thanh, cong khanh, hong hanh
dang cong » dung cong
tan thinh » van thinh, tien thinh, tai chinh
cong tan » cong tac, cong san, cong thanh
thinh co » trinh co, tinh co, chinh cho
hanh va » hang va, hanh vi
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chieu sang)) - cong hanh va dang cong tan thinh co~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu sang)) - cong hanh va dang cong tan thinh co.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu sang)) - cong hanh va dang cong tan thinh co*.