Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
ban hanh » ban hang
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va cham » va tham
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, quoc ban
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky tang xa hoi. hieu ((va cham) OR (va chat)) xuc ban hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky tang xa hoi. hieu ((va cham) OR (va chat)) xuc ban hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky tang xa hoi. hieu ((va cham) OR (va chat)) xuc ban hanh vi cua te*.