Perhaps you should try some spelling variations:
thanh trung » thanh tung
cdieu hanh » chieu xanh, deu hanh, dieu danh
trung van » truong van, trong van, trung va
dong cong » duong cong, dung cong, dang cong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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: doc ((dieu hanh) or (cdieu hanh)) - thanh trung van dong cong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (cdieu hanh)) - thanh trung van dong cong van toan cau.
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (cdieu hanh)) - thanh trung van dong cong van toan cau*.