Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, dang hanh
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
van hanh » van thanh, ban hanh, van anh
vat dung » van dung, va dung, viet dung
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (theo chu)) sach - ((xanh hanh) or (van hanh)) vat dung cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (theo chu)) sach - ((xanh hanh) OR (van hanh)) vat dung cong tan than cau.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (theo chu)) sach - ((xanh hanh) or (van hanh)) vat dung cong tan than cau*.