Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham cuu » cap cuu, chat cua
hanh vai » hanh vi, hanh va, hanh tai
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cuu va » cuu van, cuu ve
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ty nang x hoi. hieu ve cham cuu va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty nang x hoi. hieu ve cham cuu va hanh vai cua te*.