Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chuc » tranh chua, tranh cua, trang phuc
thien anh » thien danh, tien anh, thien chanh
chuc dang » chuc nang, chuc danh, thuoc dang
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 ((dieu hanh) OR (((thien anh) OR (thien thanh)))) - hanh tranh chuc dang cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dieu hanh) or (((thien anh) OR (thien thanh)))) - hanh tranh chuc dang cong dan than cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (((thien anh) OR (thien thanh)))) - hanh tranh chuc dang cong dan than cau*.