Perhaps you should try some spelling variations:
doanh khoa » toan khoa
thanh toan » thanh hoa, thanh san, tinh toan
som doanh » sam doanh, so doanh, hoa doanh
van thanh » ban thanh, van tuan
hoc cach » hoc cac, hoc sach, cuoc cach
cach hoc » cach thuc, cach thoi, dich hoc
cuu nang » chuc nang, cam nang, cuu van
nang som » nang song, nang soan, nang doc
khoa hoc » hoa hoc
xa thai » ca thai, a thai, xa hai
da thai » dao thai, do thai, ca thai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cach hoc tap, nghien cuu nang som doanh khoa hoc ((xa thai) or (da thai)) van thanh toan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cach hoc tap, nghien cuu nang som doanh khoa hoc ((xa thai) OR (da thai)) van thanh toan.
• Adding a wildcard symbol may retrieve word variants: hoc cach hoc tap, nghien cuu nang som doanh khoa hoc ((xa thai) or (da thai)) van thanh toan*.