Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (((nhieu tang) or (chieu sach)))) - thanh trung tuan dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (((nhieu tang) OR (chieu sach)))) - thanh trung tuan dung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (((nhieu tang) or (chieu sach)))) - thanh trung tuan dung cong dan toan ban*.