Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
cau treo » cau theo, cau tren, cau triet
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
vai cau » va cau, van cau, vai cac
ve cam » ve cac, va cam, ve cai
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky dang ma hoi. hieu ((ve cam) or (ve cham)) xuc van hanh vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky dang ma hoi. hieu ((ve cam) OR (ve cham)) xuc van hanh vai cau treo.
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang ma hoi. hieu ((ve cam) or (ve cham)) xuc van hanh vai cau treo*.