Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc danh, hoc dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
thoi tap » toi tap, hoc tap, hoi tai
thoi dai » hoc dai, hoi dap, hoi dan
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
van nhan » van phan, van thanh, danh nhan
tu cach » tu cac
hoi van » hoi va, hoi dan, hai van
nhan va » nhan tai, nhan dan, nhan tao
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 ((thoi tap) or (thoi dai)), nghien cuu dong hoc doanh hoa hoc xa hoi van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach ((thoi tap) OR (thoi dai)), nghien cuu dong hoc doanh hoa hoc xa hoi van nhan va.
• Adding a wildcard symbol may retrieve word variants: tu cach ((thoi tap) or (thoi dai)), nghien cuu dong hoc doanh hoa hoc xa hoi van nhan va*.