Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh voi
hanh van » thanh van, khanh van, hanh va
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
qua cau » quan cau, qua cac, qua ca
cau tuc » cau truc, cau tu, cau luc
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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 tang ma hoi. hieu qua cau tuc va ((((hanh vai) OR (hanh van))) OR (hanh vi)) va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky tang ma hoi. hieu qua cau tuc va ((((hanh vai) OR (hanh van))) or (hanh vi)) va triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky tang ma hoi. hieu qua cau tuc va ((((hanh vai) OR (hanh van))) or (hanh vi)) va triet*.