Perhaps you should try some spelling variations:
thuat tach » thuat sach, thuat mach, thuat tac
phan khung » phan chung, phan hung, phan thuong
khung hoc » chung hoc, nhung hoc, thuong hoc
tach hoc » cach hoc, mach hoc, tach hon
hoc phan » hoc dan, hoc pho
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va nha
va phan » van phan, va phat, va phap
hoc xa » hoc ma

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat tach hoc tap, nghien cuu mon hoc phan khung hoc xa hoi ((va nhan) OR (va phan)) van~.
• Adding a wildcard symbol may retrieve word variants: thuat tach hoc tap, nghien cuu mon hoc phan khung hoc xa hoi ((va nhan) or (va phan)) van*.