Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
thong cong » tong cong, thong thong, phong chong
hieu manh » chieu xanh, hieu nganh, dieu hanh
doanh cua » doanh luan
tien anh » tieng anh, tien manh, dien anh
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (tien anh)) - hanh doanh cua ((thong cong) OR (trong cong)) van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (tien anh)) - hanh doanh cua ((thong cong) OR (trong cong)) van tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (tien anh)) - hanh doanh cua ((thong cong) OR (trong cong)) van tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (tien anh)) - hanh doanh cua ((thong cong) OR (trong cong)) van tuan cau*.