Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh hang » trinh han, tranh hang, trinh hanh
doi chieu » doc hieu, doi chi, ho chieu
canh manh » lanh manh, canh tranh, cach mang
cua tong » cua cong, cua nong, cua song
cua dong » chua dong, cua cong, cua dang
hang dau » hang va, hang tai

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh manh ((cua tong) OR (cua dong)) cong trinh hang dau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh manh ((cua tong) OR (cua dong)) cong trinh hang dau*.