Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hanh trung » thanh trung, hanh trang, manh trung
cong thanh » dong thanh, cong trinh, truong thanh
chua nang » chua xang, kha nang, cuu nang
tuan dung » tuan duong, tran dung, tan dung
cong tan » cong tac, cong san, cong ty
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: ho ((chuc nang) OR (chua nang)) - hanh trung tuan dung ((cong tan) OR (cong thanh)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chuc nang) or (chua nang)) - hanh trung tuan dung ((cong tan) OR (cong thanh)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chuc nang) or (chua nang)) - hanh trung tuan dung ((cong tan) OR (cong thanh)) toan cau*.