Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh dong » anh dong, ha dong
tong cong » trong cong, cong cong, dung cong
thanh cac » hanh cac, thanh bac, thanh ca
cong ban » cong bang, cong san, cong tan
than cap » khan cap, thanh lap, than va
than cua » nhan cua, thai cua, ban cua
dong va » dung va, dong ha, luong va
va tong » va thong, va tuong, va trong

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