Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
tran manh » tran minh, tran thanh, tran van
mang cua » dung cua, ban cua, cong cua
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
than man » than ma, thanh san, than phan

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 chieu sach - hanh ((mang cua) OR (manh cua)) nhung cong dan ((than man) OR (tran manh))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((mang cua) OR (manh cua)) nhung cong dan ((than man) or (tran manh))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((mang cua) OR (manh cua)) nhung cong dan ((than man) or (tran manh))*.