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 hang » tuan hoang, tuan bang, tuan dang
cong luan » cong tuan, dong luan, cong luong
tong luan » tang luan, dung luan, hang 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 hang ((cong luan) OR (tong 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 hang ((cong luan) OR (tong luan)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (dieu hanh)) - thanh trung tuan hang ((cong luan) OR (tong luan)) van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (dieu hanh)) - thanh trung tuan hang ((cong luan) OR (tong luan)) van ban*.