Perhaps you should try some spelling variations:
phan chung » phan cung, phan hung, phan thuong
nghien cac » nghiep cach, nghien cuu, nghiep cay
chung hoc » trung hoc, dung hoc, hung hoa
nhan tao » nhan tai, nhan dan
coc phan » co phan, hoc phan, cac phan
van nhan » van phan, van thanh, danh nhan
cong coc » cong cuoc, cong cac, cong co
mach hoc » dich hoc, anh hoc, bac hoc
cac cong » cua cong
cach hoc » cach thuc, cach thoi, dich hoc
hoc bai » hoc dai, hoc giai
bai hoi » bai choi, bai hoc, dai 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 ((mach hoc) OR (cach hoc)) tap, nghien cac cong coc phan chung hoc bai hoi van nhan tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((mach hoc) OR (cach hoc)) tap, nghien cac cong coc phan chung hoc bai hoi van nhan tao*".