Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, chien tranh
hanh tranh » canh tranh, hanh trinh, hanh trang
hang huong » hang thuong, hoang phuong, bang phuong
hang luong » nang luong, hang thuong, hoang vuong
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien thanh) or (hien hanh)) - hanh tranh cua ((hang huong) OR (hang luong)) van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (hien hanh)) - hanh tranh cua ((hang huong) OR (hang luong)) van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien thanh) or (hien hanh)) - hanh tranh cua ((hang huong) OR (hang luong)) van toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (hien hanh)) - hanh tranh cua ((hang huong) OR (hang luong)) van toan tap*.