Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
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: ho ((chieu sang) or (chieu tinh)) - hanh ((trung cua) OR (trung tuan)) hang cong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu tinh)) - hanh ((trung cua) OR (trung tuan)) hang cong tac phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu tinh)) - hanh ((trung cua) OR (trung tuan)) hang cong tac phan dau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu tinh)) - hanh ((trung cua) OR (trung tuan)) hang cong tac phan dau*.