Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
cong cong » cong dong, trong cong, dung cong
doi hieu » doi chieu, doc hieu, doi hien
cong dan » cong san, cong tan, huong dan
dan cong » dang cong, van cong, dan dong
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - thanh cong dan cong cong tac phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - thanh cong dan cong cong tac phan tu*.