Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
hanh trang » thanh trung, canh tranh, hanh trinh
hien tinh » thien tinh, bien tinh, dien tinh
trang cua » tranh cua, tang cua, trung cua
dang cong » dung cong
cua dang » cua cong, cua ban
dan than » dan chan, ban than, van than

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 (khien tinh)) - hanh trang cua dang cong ((xuan toan) OR (dan than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) OR (khien tinh)) - hanh trang cua dang cong ((xuan toan) or (dan than)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) OR (khien tinh)) - hanh trang cua dang cong ((xuan toan) or (dan than)) cau*.