Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
coc doanh » cac doanh, hoa doanh, cho doanh
cap thanh » cac thanh, lap thanh, tap thanh
thanh van » thanh san, thanh toan, thanh phan
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
san hoc » van hoc, san ho, sinh hoc
dan hoc » van hoc, dan toc, dai hoc
hoi cap » hoi dap, hoi cac, hoi cau
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((san hoc) OR (dan hoc)) tap, nghien cua cong coc doanh khoa hoc xa hoi cap thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((san hoc) OR (dan hoc)) tap, nghien cua cong coc doanh khoa hoc xa hoi cap thanh van".
• Adding a wildcard symbol may retrieve word variants: thuat ((san hoc) OR (dan hoc)) tap, nghien cua cong coc doanh khoa hoc xa hoi cap thanh van*.