Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
tuan hang » tuan hoang, tuan bang, tuan dang
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
tran tan » tran tuan, tran thanh, trang tuan
tran van » luan van

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