Perhaps you should try some spelling variations:
chong thuoc » khong thuoc, cong thuc, hong phuoc
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan van » nhan dan, nhan va, phan van
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach hoc) or (mach hoc)) tap, nghien cuu mot hoc nhanh chong thuoc xa hoi va nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach hoc) OR (mach hoc)) tap, nghien cuu mot hoc nhanh chong thuoc xa hoi va nhan van.
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoc) or (mach hoc)) tap, nghien cuu mot hoc nhanh chong thuoc xa hoi va nhan van*.