Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh trung » manh tung, thanh trung, manh hung
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » chieu sang, hieu quang, nhieu tang
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
cong danh » cuong danh, cong dan, cong thanh
danh van » doanh van, dang van, dinh van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (hieu lang)) - manh trung tuan dang cong danh van ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (hieu lang)) - manh trung tuan dang cong danh van ban*.