Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, cong san, song van
toan cau » toan cao, toan ban, toan tap
tan cau » van cau, tan ca, tao cau

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 ((hieu manh) OR (chinh sach)) - thanh tung cua dung cong van ((tan cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chinh sach)) - thanh tung cua dung cong van ((tan cau) OR (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chinh sach)) - thanh tung cua dung cong van ((tan cau) OR (toan cau))*.