Perhaps you should try some spelling variations:
hanh bang » anh bang, hanh mang, lanh bang
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
bang vat » bang va, dang vat, cang vat
vat dung » van dung, va dung, viet dung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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: ((theo chu) OR (ho chieu)) xanh - hanh bang vat dung ((cong dan) OR (cong san)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (ho chieu)) xanh - hanh bang vat dung ((cong dan) OR (cong san)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (ho chieu)) xanh - hanh bang vat dung ((cong dan) OR (cong san)) toan cau*.