Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong quang » luong quang, thong quang, duong quang
quang doan » quan doan, quang hoan, quang toan
doi chieu » doc hieu, doi chi, mot chieu
trung tap » trung tam, rung tap, trung lap
trung cap » truong cao, trung tam
cong cong » cong dong, trong cong, dung cong
doan dau » doan dieu, phan dau, doan va

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 tinh - thanh ((trung tap) or (trung cap)) cong cong quang doan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh ((trung tap) OR (trung cap)) cong cong quang doan dau*.