Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
cong thanh » dong thanh, cong trinh, cong tan
trung cua » truong cua, trung cap, dung cua
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong bang, cong san, cong tan

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 sang - thanh ((trung cua) OR (trung tuan)) nhung ((cong ban) or (cong thanh)) thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh ((trung cua) OR (trung tuan)) nhung ((cong ban) OR (cong thanh)) thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh ((trung cua) OR (trung tuan)) nhung ((cong ban) or (cong thanh)) thanh lap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh ((trung cua) OR (trung tuan)) nhung ((cong ban) or (cong thanh)) thanh lap*.