Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
ngoc anh » ngu anh
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
va nham » va cham, va tham, va nha
cua tre » cua te, cuu tre, cua triet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (ngoc anh)) ty nang x ho. hieu va nham thuc van hanh dai cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (ngoc anh)) ty nang x ho. hieu va nham thuc van hanh dai cua tre*.