Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, sach moi, cach thoi
dong luc » nang luc
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
mon hoc » toan hoc, dong hoc
va phan » van phan, va phat, va phap
phan va » phan van, nhan va, han va
hoc xa » hoc ma

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 hoi tap, nghien cuu ((mon hoc) or (dong luc)) nganh khong hoc xa hoi va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoi tap, nghien cuu ((mon hoc) OR (dong luc)) nganh khong hoc xa hoi va phan va.
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tap, nghien cuu ((mon hoc) or (dong luc)) nganh khong hoc xa hoi va phan va*.