Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc doanh » hoc danh, hoc dan, hoc nganh
hoa doanh » toan doanh, hoa dan
thoi tap » toi tap, hoc tap, thoi dai
khoa hoc » hoa hoc
cac luan » cac luat, sach luan, cac dan
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
hoc cac » hoc cao
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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, nghien cuu mon ((hoc doanh) or (hoa doanh)) khoa hoc xa hoc cac luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi tap, nghien cuu mon ((hoc doanh) OR (hoa doanh)) khoa hoc xa hoc cac luan van.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu mon ((hoc doanh) or (hoa doanh)) khoa hoc xa hoc cac luan van*.