Perhaps you should try some spelling variations:
doanh tri » doanh tai, doanh tren, dinh tri
van doanh » toan doanh, van dong, van thanh
tac dung » sach dung, xay dung, tin dung
vien cac » vien bach, vien dai, vien da
den van » dien van, nen van, de van
dan thi » dang thi, dinh thi, dan thuc
te tac » te tai, ve tac, te cac

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: (((( te tac dung tai ) OR ( den van doanh tri ))) OR ( vien cac ((dan thi) OR (tran thi)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( te tac dung tai ) or ( den van doanh tri ))) or ( vien cac ((dan thi) OR (tran thi)) ))~".
• Adding a wildcard symbol may retrieve word variants: (((( te tac dung tai ) or ( den van doanh tri ))) or ( vien cac ((dan thi) OR (tran thi)) ))*.