Perhaps you should try some spelling variations:
thanh trung » thanh tung
quang cong » quang cuong, quang dong, quang hoang
trung cap » truong cao, trung tam
cap quang » cai quang, chat quang, chau quang
cong tuan » cong tan, cong luan, cong thanh
tuan phan » luan phan, toan phan, tuan pham
ho chieu » theo chieu, hoc thieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (toc thieu)) tinh - thanh trung cap quang cong tuan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) tinh - thanh trung cap quang cong tuan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (toc thieu)) tinh - thanh trung cap quang cong tuan phan tu*.