Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
cong san » cong tac
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh trung tuan dang cong san ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung tuan dang cong san ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung tuan dang cong san ((than cau) or (phan cau))*.