Perhaps you should try some spelling variations:
sach hoc » cach hoc, sach hoi, mach hoc
hoc ngan » hoc nganh, boc ngan, hoc nga
hang hoc » hang hoa, nang hoc, bang hoc
te sach » toc sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, va phan, va nha
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: te sach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((va nhan) OR (ca nhan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((va nhan) OR (ca nhan)) van".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu mon hoc ngan hang hoc xa hoi ((va nhan) OR (ca nhan)) van*.