Perhaps you should try some spelling variations:
thien tinh » khien tinh, thien minh, tien tinh
hanh trung » thanh trung, hanh trang, manh trung
hien tinh » khien tinh, bien tinh, dien tinh
tuan hung » tran hung, luan hung, tuan dung
hung cong » nhung cong, hung cuong, phung cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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 ((hien tinh) OR (thien tinh)) - ((hanh trung) OR (canh tranh)) tuan hung cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) OR (thien tinh)) - ((hanh trung) or (canh tranh)) tuan hung cong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) OR (thien tinh)) - ((hanh trung) or (canh tranh)) tuan hung cong dan toan cau*.