Perhaps you should try some spelling variations:
khoa doanh » hoa doanh, cho doanh, khoa dang
thanh hoc » thanh hoa, than hoc, thanh ho
danh nhan » doanh nhan, thanh nhan, benh nhan
tu thanh » thu thanh, su thanh, ta thanh
cuu toan » cuu hoan, cua toan, huu toan
khoa hoc » hoa hoc
hoc xa » hoc ma
ve nha » ke nha

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu thanh hoc tap, nghien cuu toan khoa doanh khoa hoc xa hoi ((ve nha) or (danh nhan)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu thanh hoc tap, nghien cuu toan khoa doanh khoa hoc xa hoi ((ve nha) OR (danh nhan)) dan.
• Adding a wildcard symbol may retrieve word variants: tu thanh hoc tap, nghien cuu toan khoa doanh khoa hoc xa hoi ((ve nha) or (danh nhan)) dan*.