Perhaps you should try some spelling variations:
doanh nhung » doanh chung, doanh thuong, doanh nhan
hien thanh » thien thanh, tien thanh, dien thanh
hanh thanh » nhanh thanh, thanh thanh, khanh thanh
toan chung » doanh chung, toan thong, luan chung
hien hanh » dieu hanh
cong san » cong tac
san tran » tan tran, ban tran, dang tran
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien thanh) OR (hien hanh)) - hanh thanh ((doanh nhung) or (toan chung)) cong san tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien thanh) OR (hien hanh)) - hanh thanh ((doanh nhung) OR (toan chung)) cong san tran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien thanh) OR (hien hanh)) - hanh thanh ((doanh nhung) or (toan chung)) cong san tran cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien thanh) OR (hien hanh)) - hanh thanh ((doanh nhung) or (toan chung)) cong san tran cau*.