Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nang hoa » nang hoat, hang hoa, nang hoc
nghe nam » nghe lam, nghiep nam, nghe nano
nam thuc » nam thuoc, am thuc, nam thu
vat hanh » vat thanh, van hanh, va hanh
hanh hai » thanh hai, nhanh hai, hang hai
su triet » su viet, su tien, ve triet
te sach » toc sach
y nang » ky nang, ly nang, v nang

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 y nang hoa hoc. hieu nghe nam thuc vat hanh hai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang hoa hoc. hieu nghe nam thuc vat hanh hai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang hoa hoc. hieu nghe nam thuc vat hanh hai ((cua triet) or (su triet))*.