Perhaps you should try some spelling variations:
nganh dong » nganh cong, nhanh dong, nganh nong
nghiep va » nghiep vu
luc nganh » luc ngan, chuc nganh, luat nganh
thuoc mai » thuoc ma, thuoc moi, thuoc sai
thuoc tai » nuoc tai, hoc tai, thuoc ma
sach hoc » cach hoc, sach hoi, mach hoc
dong luc » nang luc
tu sach » thu sach, su sach, te sach
va dong » van dong, ha dong, xa dong
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao

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 hoc tap, nghiep va dong luc nganh dong ((thuoc mai) OR (thuoc tai)) hoi va nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghiep va dong luc nganh dong ((thuoc mai) OR (thuoc tai)) hoi va nhan va".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghiep va dong luc nganh dong ((thuoc mai) OR (thuoc tai)) hoi va nhan va*.