Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
dang cong » dung cong
thanh lap » thanh san, phan lap, thanh hai
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tap
ha dang » hai dang, ha dong, ha tang

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 sach) or (chieu sang)) - thanh trung ha dang cong dan ((toan cau) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - thanh trung ha dang cong dan ((toan cau) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - thanh trung ha dang cong dan ((toan cau) or (thanh lap))*.