Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoc » cach hoc, sach hoi, mach hoc
dong hoc » dong co, dong luc
nhan van » nhan dan, nhan va, phan van
tu sach » thu sach, su sach, te sach
mon hoc » toan hoc
va nhan » van nhan, ca nhan, va phan
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 hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh khung hoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh khung hoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh khung hoc xa hoi va nhan van*.