Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nhanh khong » nhanh chong, nganh khong, nhan khong
hoc nhanh » hoc nganh, hoc phan
thuoc xa » thuoc ma, thuoc va, thuoc la
cua nhan » ca nhan, cua ngan, cua nha
nhan van » nhan dan, nhan va, phan van
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoi cua » hoi chuc

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) or (su sach)) hoc tap, nghien cuu mot hoc nhanh khong thuoc xa hoi cua nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) hoc tap, nghien cuu mot hoc nhanh khong thuoc xa hoi cua nhan van.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) hoc tap, nghien cuu mot hoc nhanh khong thuoc xa hoi cua nhan van*.