Perhaps you should try some spelling variations:
thanh chau » thanh cha, thanh cham, thanh chu
doi chieu » doc hieu, doi chi, mot chieu
quan tong » quan trong, quan long, quan nong
quan dong » quang dong, quan long, quan hoang
san thanh » ban thanh, van thanh, son thanh
ho chieu » theo chieu, hoc thieu, mot chieu
hanh ban » thanh ban, hang ban, hanh san
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (ho chieu)) sach - hanh ban ((quan tong) OR (quan dong)) cong san thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - hanh ban ((quan tong) OR (quan dong)) cong san thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (ho chieu)) sach - hanh ban ((quan tong) OR (quan dong)) cong san thanh chau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - hanh ban ((quan tong) OR (quan dong)) cong san thanh chau*.