Perhaps you should try some spelling variations:
tac tuong » tac thuong, tac trong, tai tuong
tuong hoc » truong hoc, tuong ho, duong hoc
danh tac » danh bac, doanh tai, danh thuc
bac tong » ban tong, tac trong, bac thang
dong hoc » dong co, dong luc
bat dong » hoat dong, ha dong, van dong
tac dung » sach dung, xay dung, van dung
canh tac » canh tay, canh giac, cong tac
hien nam » phien nam, hien nay, vien nam
tong hoc » thong hoc, trong hoc, tong hop
dan bat » danh bat, dan dat, dan ba
dan bac » dan ba, van bac, dong bac

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: (((((( danh tac tuong hoc hien nam ) OR ( canh tac tuong hoc hien nam ))) OR ( danh ((tac dung) OR (tin dung)) hoc viet nam ))) OR ((( dan bat dong hoc viet nam ) OR ( dan bac tong hoc viet nam ))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((( danh tac tuong hoc hien nam ) or ( canh tac tuong hoc hien nam ))) or ( danh ((tac dung) OR (tin dung)) hoc viet nam ))) or ((( dan bat dong hoc viet nam ) or ( dan bac tong hoc viet nam ))))~".
• Adding a wildcard symbol may retrieve word variants: (((((( danh tac tuong hoc hien nam ) or ( canh tac tuong hoc hien nam ))) or ( danh ((tac dung) OR (tin dung)) hoc viet nam ))) or ((( dan bat dong hoc viet nam ) or ( dan bac tong hoc viet nam ))))*.