Perhaps you should try some spelling variations:
thanh chau » thanh cha, thanh cham, thanh chu
hanh trinh » canh tranh, hanh chinh
hieu sach » chieu sach, hieu cach, dien sach
trinh cua » tinh cua, trinh luat, trinh quan
trong ban » trong san, trong tan, trong quan
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - hanh trinh cua dung trong ban ((thanh chau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - hanh trinh cua dung trong ban ((thanh chau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - hanh trinh cua dung trong ban ((thanh chau) or (than cap))*.