Perhaps you should try some spelling variations:
ve triet » va trien, su triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi ve » va ve, gi ve, ve ve

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: su sach ky ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc va danh vi ve triet~.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang ma) or (nang cao)) hoi. hieu ve cam xuc va danh vi ve triet*.