Perhaps you should try some spelling variations:
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
hanh di » hanh de, hang di, danh di
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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 tu nang xa hoi. lieu va cam duc van ((hanh di) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang xa hoi. lieu va cam duc van ((hanh di) OR (hanh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu nang xa hoi. lieu va cam duc van ((hanh di) or (hanh vi)) cua tre*.