Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nhanh » hoc nganh, hoc phan
luong tai » dung tai, luong va
sach hoc » cach hoc, sach hoi, mach hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi van » hoi va, hoi dan, hai van
dong tu » dong luc, thong tu, dong tai

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 khong thuoc xa hoi van ((dong tu) or (luong tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu mon hoc nhanh khong thuoc xa hoi van ((dong tu) OR (luong tai))*.