Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu quang » hieu quang, thieu quang, chu quang
thuong nhat » truong nhat, thuong phat, thuong thuat
cong thanh » dong thanh, cong trinh, truong thanh
nhat dung » hat dung, nha dung, nhat quang
ho chieu » theo chieu, hoc thieu, mot chieu
cong tan » cong tac, cong san, cong ty
tran van » luan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu quang - thanh thuong nhat dung ((cong tan) OR (cong thanh)) tran van~.
• Adding a wildcard symbol may retrieve word variants: ho chieu quang - thanh thuong nhat dung ((cong tan) or (cong thanh)) tran van*.