Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
cua trong » cua truong, cua trung, qua trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: ho ((dieu hanh) or (chieu tinh)) - hanh trung cua trong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chieu tinh)) - hanh trung cua trong cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((dieu hanh) or (chieu tinh)) - hanh trung cua trong cong san toan cau*.