Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
tang quan » tang luan, nang quan, tong quan
quan hang » quan hoang, quan lang, quan hanh
chu xanh » chu manh, chieu xanh, chua xang
cong tac » cong ty
tuan cau » toan cau, quan cau, tuan cu
chuc » thuc, chua, phuc

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: theo ((chu xanh) OR (chuc nang)) - hanh tang quan hang ((cong san) OR (cong tac)) tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chuc nang)) - hanh tang quan hang ((cong san) OR (cong tac)) tuan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - hanh tang quan hang ((cong san) OR (cong tac)) tuan cau*.