Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, sach hoi, mach hoc
hong hoc » thong hoc, hong phuoc, thuong hoc
dong hoc » dong co, dong luc
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach hoc tap, nghien cuu mon hoc nhanh ((hong hoc) OR (dong hoc)) xa hoi va nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mon hoc nhanh ((hong hoc) OR (dong hoc)) xa hoi va nhan va".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mon hoc nhanh ((hong hoc) OR (dong hoc)) xa hoi va nhan va*.