Perhaps you should try some spelling variations:
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
cuc canh » luc canh, cuoc cach, luoc canh
suc canh » luc canh, suc manh, luoc canh
khoa hoc » hoa hoc
ha doanh » hoa doanh, nha doanh, va doanh
nhan tao » nhan tai, nhan dan
te mach » ke mach, te sach, tim mach
ma ha » ma hoa, mai ha, my ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: te mach hoc tap, nghien cuu cong ((cuc canh) OR (suc canh)) khoa hoc ma ha doanh nhan tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te mach hoc tap, nghien cuu cong ((cuc canh) OR (suc canh)) khoa hoc ma ha doanh nhan tao".
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu cong ((cuc canh) OR (suc canh)) khoa hoc ma ha doanh nhan tao*.