Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
xanh hanh » danh thanh, ban hanh, dang hanh
dung cong » dung trong
theo chu » cho chu, chao chu, theo yeu
van hanh » van thanh, ban hanh, van anh
vat dung » van dung, va dung, viet dung
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
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 chieu) or (theo chu)) sach - ((xanh hanh) OR (van hanh)) vat dung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sach - ((xanh hanh) OR (van hanh)) vat dung cong ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo chu)) sach - ((xanh hanh) OR (van hanh)) vat dung cong ban than cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) sach - ((xanh hanh) OR (van hanh)) vat dung cong ban than cau*.