Perhaps you should try some spelling variations:
mot chieu » doi chieu
hanh hinh » hanh chinh, hanh tinh, hanh dinh
hinh luat » hanh luat, trinh luat, chinh luan
dang cong » dung cong
vong tuan » vuong tuan, cong tuan, hoang tuan
ho chieu » theo chieu, hoc thieu, doi chieu
dan cong » van cong, dan dong, ban cong
tuan cau » toan cau, quan cau, tuan cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (ho chieu)) sach - hanh hinh luat ((dan cong) OR (dang cong)) vong tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (ho chieu)) sach - hanh hinh luat ((dan cong) OR (dang cong)) vong tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (ho chieu)) sach - hanh hinh luat ((dan cong) OR (dang cong)) vong tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (ho chieu)) sach - hanh hinh luat ((dan cong) OR (dang cong)) vong tuan cau*.