Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
tuan bang » tuan dang, tuan hoang, thuat bang
bang cong » dang cong, bang song, hang cong
cong luan » tong luan, cong tuan, dong luan

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 (dieu hanh)) - thanh trung tuan bang cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (dieu hanh)) - thanh trung tuan bang cong luan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (dieu hanh)) - thanh trung tuan bang cong luan van ban*.