Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hien danh » thien danh, hien hanh, hien nhanh
chua xang » chua nang, chuc nang, chu bang
chu nang » chuc nang, chua nang, cuu nang
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 danh - hanh trang ((chua xang) OR (chu nang)) cong dan toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - hanh trang ((chua xang) or (chu nang)) cong dan toan cau*.