Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh chau » thanh cha, thanh cham, thanh chu
hien sach » kien sach, thien hach, chieu sach
dien sach » dien anh
trung cua » truong cua, trung tuan, trung cap
han tuong » han thuong, nhan tuong, han tong
tuong dan » huong dan, tung dan, xuong dan
than cap » khan cap, thanh lap, thanh cac
cua han » cua hang, cua nhan, cua phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sach) OR (dien sach)) - thanh trung cua han tuong dan ((thanh chau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (dien sach)) - thanh trung cua han tuong dan ((thanh chau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) OR (dien sach)) - thanh trung cua han tuong dan ((thanh chau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) OR (dien sach)) - thanh trung cua han tuong dan ((thanh chau) or (than cap))*.