Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
hien sach » dien sach, kien sach, thien hach
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
tuong dan » huong dan, tung dan, xuong dan
dung cua » dung luan, dung cho
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 hien sach - hanh dung cua nhung tuong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - hanh dung cua nhung tuong dan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh dung cua nhung tuong dan ((toan cao) or (toan tap))*.