Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
lang van » dang van, tang van, hoang van
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam

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 y ((((nang xa) or (nang x))) or (lang van)) hoi. hieu ve cam duc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y ((((nang xa) OR (nang x))) OR (lang van)) hoi. hieu ve cam duc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach y ((((nang xa) or (nang x))) or (lang van)) hoi. hieu ve cam duc va hanh vai cua tre*.