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 toan » bai toan, ban than, van toan
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: ((theo chieu) or (theo chu)) sach - ((xanh hanh) or (van hanh)) vat dung cong ban toan 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 toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) sach - ((xanh hanh) or (van hanh)) vat dung cong ban toan cau*.