Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, tran tuan, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao
tong cong » trong cong, cong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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