Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
doanh khang » doanh nhan, danh thang, doanh chung
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc doanh » hoa doanh, hoc danh, hoc dan
cach hoc » cach thuc, cach thoi, dich hoc
cua dong » chua dong, cua cong, cua dang
dong hoc » dong co, dong luc
thuoc xa » thuoc ma, thuoc va, thuoc la
tu cach » tu cac
va phan » van phan, va phat, va phap
va nha » va nho, ve 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 cach hoc tap, nghien cua dong hoc doanh khang thuoc xa hoi ((va nha) or (va phan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cua dong hoc doanh khang thuoc xa hoi ((va nha) OR (va phan)) van.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cua dong hoc doanh khang thuoc xa hoi ((va nha) or (va phan)) van*.