Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nhan cac » nhan cach, phan cac, nhan mac
ban hanh » ban hang
va triet » va thiet, va trien, ve triet
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
va nhan » van nhan, ca nhan, va phan
cac ban » cac dan, cac van, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky ((nang xa) or (lang xa)) hoi. lieu va nhan cac ban hanh vi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky ((nang xa) OR (lang xa)) hoi. lieu va nhan cac ban hanh vi ((va triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: thuat sach ky ((nang xa) or (lang xa)) hoi. lieu va nhan cac ban hanh vi ((va triet) or (su triet))*.