Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
sach va » sach xa, sach ha, sach dao
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
va nang » van nang, da nang, cam nang
di cuu » di cau, di cua, dinh cuu
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: toc sach va nang x hoi. hieu ve ((cham xuc) or (cam xuc)) ((va hanh) or (van hanh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach va nang x hoi. hieu ve ((cham xuc) OR (cam xuc)) ((va hanh) OR (van hanh)) di cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc sach va nang x hoi. hieu ve ((cham xuc) or (cam xuc)) ((va hanh) or (van hanh)) di cuu tre*.