Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
trung cua » truong cua, trung tuan, trung cap
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
cong van » cong vang, cong san, song van
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 (chiet tach)) - thanh trung cua dong cong van ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chiet tach)) - thanh trung cua dong cong van ((toan cau) OR (toan tap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((dieu hanh) or (chiet tach)) - thanh trung cua dong cong van ((toan cau) OR (toan tap))*".