Perhaps you should try some spelling variations:
hanh dong » anh dong, ha dong
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
hoc hanh » hoc nhanh, hoc thanh, hoc anh
dong hoc » dong co, dong luc
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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 (mach hoc)) tap, nghien cuu mon hoc hanh dong hoc xa hoi ca nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (mach hoc)) tap, nghien cuu mon hoc hanh dong hoc xa hoi ca nhan va.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (mach hoc)) tap, nghien cuu mon hoc hanh dong hoc xa hoi ca nhan va*.