Perhaps you should try some spelling variations:
tung doanh » dung doanh, trong doanh, nhung doanh
chung long » khung long, chung thong, chuong dong
hieu lang » chieu sang, hieu quang, nhieu tang
manh tung » manh hung, thanh tung
hung long » huang long, hung luong, khung long
hoi hieu » hoi phieu, hoi tieu, moi hieu
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - manh tung doanh ((chung long) or (hung long)) tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - manh tung doanh ((chung long) OR (hung long)) tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - manh tung doanh ((chung long) or (hung long)) tinh toan tap*.