Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trung hap » trung cap, trung hai, trung lap
hang cong » dang cong, hang nong, bang cong
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu

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 xanh - thanh ((trung hap) or (trung ha)) hang cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((trung hap) OR (trung ha)) hang cong tac phan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((trung hap) or (trung ha)) hang cong tac phan cau*.