Perhaps you should try some spelling variations:
thinh sach » chinh sach, tinh sach, sinh sach
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
toan ban » van ban
tien » tieng, bien, vien

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

• Performing a fuzzy search may retrieve terms with similar spellings: tien thinh sach - hanh trinh cua bang cong dan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien thinh sach - hanh trinh cua bang cong dan ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: tien thinh sach - hanh trinh cua bang cong dan ((toan ban) or (toan tap))*.