Perhaps you should try some spelling variations:
nhanh dong » hanh dong, nhanh chong, anh dong
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
dong luc » nang luc
hoi pham » toi pham, hai pham, hoi cham
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
luc van » luoc van, luu van, duc van
hoa hoi » khoa hoi, hoa hoc, hoa doi

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) or (sach hoi)) tap, nghien cuu mon hoc nhanh dong luc van hoa hoi pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (sach hoi)) tap, nghien cuu mon hoc nhanh dong luc van hoa hoi pham van.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (sach hoi)) tap, nghien cuu mon hoc nhanh dong luc van hoa hoi pham van*.