Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
tran tuan » tran xuan, tran quang, tran thanh
tan thanh » tran thanh, tang thanh, toan thanh

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 sang - hanh ((trung cap) or (tran tuan)) nhung cong ((tan thanh) or (tan tran)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh ((trung cap) OR (tran tuan)) nhung cong ((tan thanh) OR (tan tran)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh ((trung cap) or (tran tuan)) nhung cong ((tan thanh) or (tan tran)) cau*.