Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
theo chu » cho chu, chao chu, theo yeu
cong san » cong tac
than cap » khan cap, thanh lap, than cua
tinh va » tich va, trinh van, trinh vat
va dung » van dung, va duong, vat dung

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)) xanh - hanh tinh va dung cong san ((than cap) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) xanh - hanh tinh va dung cong san ((than cap) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo chu)) xanh - hanh tinh va dung cong san ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) xanh - hanh tinh va dung cong san ((than cap) OR (thanh cac))*.