Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
thu sach » tu sach, thuat sach, thuoc sach
sach doi » sach hoi, sach moi, sach dao
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
van nhan » van phan, van thanh, danh nhan
doi tap » doi tac, doi dap, doi tai
va nhan » ca nhan, va phan, va nha
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: thu sach doi tap, nghien cuu dong hoc nganh khung hoc xa hoi ((va nhan) OR (van nhan)) tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach doi tap, nghien cuu dong hoc nganh khung hoc xa hoi ((va nhan) OR (van nhan)) tai".
• Adding a wildcard symbol may retrieve word variants: thu sach doi tap, nghien cuu dong hoc nganh khung hoc xa hoi ((va nhan) OR (van nhan)) tai*.