Perhaps you should try some spelling variations:
cong quang » luong quang, thong quang, duong quang
quang doan » quan doan, quang hoan, quang toan
chau tinh » cuu tinh, ha tinh, cua tinh
trung lap » truong lam, truong lop, trung tam
trung cap » truong cao, trung tam
cong cong » cong dong, trong cong, dung cong
doi chau » doi chieu, gioi chau, hoi chu
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 chau tinh - thanh ((trung lap) or (trung cap)) cong cong quang doan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chau tinh - thanh ((trung lap) OR (trung cap)) cong cong quang doan dau*.