Perhaps you should try some spelling variations:
thanh trung » thanh tung
quang dung » quang trung, ung dung, cuong dung
doi chieu » doc hieu, doi chi, mot chieu
trung cap » truong cao, trung tam
cap quang » cai quang, chat quang, chau quang
dung qua » duong qua, dung quan, dung cua
qua phan » cua phan, qua than, quang phan

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) or (toc thieu)) tinh - thanh trung cap quang dung qua phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) tinh - thanh trung cap quang dung qua phan tu.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) tinh - thanh trung cap quang dung qua phan tu*.