Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
nghien cua » nghien cuu, nghiep cua, nghiep vua
danh phan » doanh phan, danh nhan, danh phap
cach hoc » cach thuc, cach thoi, dich hoc
ngan hoa » nganh hoa, nhan hoa, nganh khoa
tu cach » tu cac
cong so » cong san, cong hoa
so ngan » ro ngan, von ngan
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: tu cach hoc tap, nghien cua cong so ngan hoa hoc xa hoi ((danh phan) or (doanh thanh)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cua cong so ngan hoa hoc xa hoi ((danh phan) OR (doanh thanh)) dau.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cua cong so ngan hoa hoc xa hoi ((danh phan) or (doanh thanh)) dau*.