Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
van cam » van nam, van lam, van cau
tay hoi » tay ho, tao hoi, tay thai
ly dong » ly dung, lao dong, huy dong
ty dong » tay dong, tu dong, ty nong
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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 ((((ty dong) or (ly dong))) or (ty xang)) tay hoi. hieu van cam luc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((((ty dong) OR (ly dong))) OR (ty xang)) tay hoi. hieu van cam luc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((((ty dong) or (ly dong))) or (ty xang)) tay hoi. hieu van cam luc va hanh vi cua tre*.