Perhaps you should try some spelling variations:
nganh nong » nganh cong
luc nganh » luc ngan, chuc nganh, luat nganh
sach hoi » sach doi, cach thoi, hoach hoi
sach moi » sach doi, bach mai, sach bai
cuu nang » chuc nang, cam nang, cuu van
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
nong de » nong do, cong de, nong e
hoi van » hoi va, hoi dan, hai van
de xa » de xay, den xa, te xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoi) or (sach moi)) tap, nghien cuu nang luc nganh nong de xa hoi van nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoi) OR (sach moi)) tap, nghien cuu nang luc nganh nong de xa hoi van nhan van.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) or (sach moi)) tap, nghien cuu nang luc nganh nong de xa hoi van nhan van*.