Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
van bay » van ban, van bao, van bac
bay dua » cay dua, chay dua
dua ban » dia ban, cua ban, qua ban
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
vai su » va su, van su, lai su

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: thu sach y nang ((ma hoi) OR (ma hoa)). hieu van bay dua ban thanh vai su triet~.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ((ma hoi) or (ma hoa)). hieu van bay dua ban thanh vai su triet*.