Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu tong, cuu long, luu dong
cuu cong » cua cong, thu cong, cac cong
thuoc xa » thuoc ma, thuoc va, thuoc la
dan nhan » danh nhan, dan chan, van nhan
nhan van » nhan dan, nhan va, phan van
so sach » so sanh, bo sach, co sach
hoi dan » hoa dan, hoc dan, hoi dap

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

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