Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
chiet tach » chieu sach
manh tuong » manh tung, manh cuong, minh tuong
trong minh » truong minh, trong kinh, thong minh
tuong cua » truong cua, huong cua, thong cua
cua dung » cua dang, cua dong, qua dung
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) or (chiet tach)) - manh tuong cua dung trong minh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (chiet tach)) - manh tuong cua dung trong minh ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) or (chiet tach)) - manh tuong cua dung trong minh ((toan cao) or (toan tap))*.