Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, mot chieu
trung nam » trung tam, trong nam, trung cap
nam trong » nam trung, cay trong
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 chieu sang - thanh trung nam trong cong tac phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung nam trong cong tac phan tu*.