Perhaps you should try some spelling variations:
chinh luan » chinh ngan, trinh luan, binh luan
mot chieu » doi chieu
vong quan » vuong quan, vong quanh, tong quan
ho chieu » theo chieu, hoc thieu, doi chieu
dan cong » dang cong, dan dong, ban cong
van cong » van dong, van phong, phan cong
quan cau » quang cao, toan cau, quan ha

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 chinh luan ((dan cong) or (van cong)) vong quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (ho chieu)) sach - hanh chinh luan ((dan cong) OR (van cong)) vong quan cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (ho chieu)) sach - hanh chinh luan ((dan cong) or (van cong)) vong quan cau*.