Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
theo chua » theo chu, ho chua, cheo cua
chua nang » chuc nang, chua xang, kha nang
trang va » tran van, hang va
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua nang - hanh trang va nhung ((((cong tan) or (huong dan))) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua nang - hanh trang va nhung ((((cong tan) OR (huong dan))) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chua nang - hanh trang va nhung ((((cong tan) or (huong dan))) or (cong san)) toan cau*.