Perhaps you should try some spelling variations:
luat nganh » luat ngan, thuat nganh, luat doanh
nganh nong » nganh cong
dong luat » dong luan, dung luat, dong luc
nong than » nong thanh, nong thon, long than
thu sach » thuat sach, thuoc sach, thu hoach
cuu dong » cuu cong, cuu tong, cuu long
than mai » tan mai, than ma, than man
nhan dan » phan dau, gian dan, nhan tai
tu sach » su sach, te sach, tu cach
hoi tai » hoc tai, hoi trac
mai hoi » mai khoi, dai hoi, lai hoi
va nhan » van nhan, ca nhan, va phan

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: ((tu sach) OR (thu sach)) hoi tai, nghien cuu dong luat nganh nong than mai hoi va nhan dan~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) hoi tai, nghien cuu dong luat nganh nong than mai hoi va nhan dan*.