Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung quan » truong quan, trong quan, truong quang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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 sang - thanh ((trung quan) OR (trung tuan)) nhung cong ((dan than) OR (ban than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh ((trung quan) OR (trung tuan)) nhung cong ((dan than) or (ban than)) cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh ((trung quan) OR (trung tuan)) nhung cong ((dan than) or (ban than)) cau*.