Perhaps you should try some spelling variations:
nhiem nghe » nghiep nghe, hiem ngheo
nghe nam » nghe lam, nghiep nam, nghe nano
nam thuc » nam thuoc, am thuc, nam thu
vat hanh » vat thanh, van hanh, va hanh
su sach » so sach, vu sach
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thu hoach)) ky sang ma hoi. nhiem nghe nam thuc vat hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu hoach)) ky sang ma hoi. nhiem nghe nam thuc vat hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu hoach)) ky sang ma hoi. nhiem nghe nam thuc vat hanh vi cuu tre*.