Perhaps you should try some spelling variations:
doanh khoa » toan khoa
huy tinh » thuy tinh, nhuy tinh, huy sinh
tinh hoc » sinh hoc, tin hoc, hinh hoc
cuu dong » cuu cong, cuu tong, cuu long
co doanh » cho doanh, cao doanh, so doanh
dan nhan » danh nhan, dan chan, van nhan
nhan van » nhan dan, nhan va, phan van
hoi dan » hoa dan, hoc dan, hoi dap

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

• Performing a fuzzy search may retrieve terms with similar spellings: huy tinh hoc tap, nghien cuu dong co doanh khoa ((hoc xa) OR (hoc ma)) hoi dan nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "huy tinh hoc tap, nghien cuu dong co doanh khoa ((hoc xa) OR (hoc ma)) hoi dan nhan van".
• Adding a wildcard symbol may retrieve word variants: huy tinh hoc tap, nghien cuu dong co doanh khoa ((hoc xa) OR (hoc ma)) hoi dan nhan van*.