Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
sach dat » sach dao, sach danh, sach xa
sach bai » sach dao, cac bai, sach xa
nhan van » nhan dan, nhan va, phan van
va nhan » van nhan, ca nhan, va phan
mo hoc » mon hoc, co hoc
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 dat) OR (sach bai)) tay, nghien cuu mo hoc nganh hoa hoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach dat) OR (sach bai)) tay, nghien cuu mo hoc nganh hoa hoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu ((sach dat) OR (sach bai)) tay, nghien cuu mo hoc nganh hoa hoc xa hoi va nhan van*.