Perhaps you should try some spelling variations:
khong hoc » khung hoc, khong thuoc, khong chuc
thong hoc » thuong hoc, tuong hoc, thong hoa
toc sach » hoc sach, doc sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cu nganh » cua nganh, cau nganh, chuc nganh
cong cu » chung cu
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach hoc tap, nghien cuu cong cu nganh ((khong hoc) or (thong hoc)) xa hoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach hoc tap, nghien cuu cong cu nganh ((khong hoc) OR (thong hoc)) xa hoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: toc sach hoc tap, nghien cuu cong cu nganh ((khong hoc) or (thong hoc)) xa hoi va nhan va*.