Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
pham duy » pham duc
sang tao » hang tai
va hanh » van hanh, va thanh, va danh
va pham » van pham, va phat, va phap
sach ty » sach y, sach thu, xach tay
tao hoi » tao khoi, tao boi, tay hoi
sach tu » sach thu, cach tu, sach uu
hieu va » lieu va, hieu qua
duy va » duy vat, duy van, day va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) sang tao hoi. hieu va pham duy va hanh vi ((cua triet) OR (cua viet))~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach tu)) sang tao hoi. hieu va pham duy va hanh vi ((cua triet) or (cua viet))*.