Perhaps you should try some spelling variations:
luan doanh » luat doanh, luan danh, nhuan doanh
thien danh » thien anh, thien dang, thien thanh
truong van » trong van, truong va, truong cao
hieu manh » chieu xanh, hieu nganh, dieu hanh
nang luan » tang luan, hang luan, nang quan
anh nang » ganh nang, anh bang, anh dang
tuan ban » tuan bang, toan ban, luan ban

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: hoc ((thien danh) OR (hieu manh)) - anh nang luan doanh ((truong van) OR (truong dai)) tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien danh) or (hieu manh)) - anh nang luan doanh ((truong van) OR (truong dai)) tuan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (hieu manh)) - anh nang luan doanh ((truong van) OR (truong dai)) tuan ban*.