Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
luc nganh » luc ngan, chuc nganh, luat nganh
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
cong hoc » dong hoc, cong hoa, cong coc
phan tao » nhan tao, phan tap, phan bao
phan tan » phan van, phan tap, phan lan
tu sach » thu sach, su sach, te sach
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
hoi van » hoi va, hoi dan, hai van

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, nghien cuu dong luc nganh cong hoc mai hoi van ((phan tao) OR (phan tan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu dong luc nganh cong hoc mai hoi van ((phan tao) OR (phan tan))".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu dong luc nganh cong hoc mai hoi van ((phan tao) OR (phan tan))*.