Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cuu thong » cuu thuong, cuu chong, cuu phong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu tong » cuu cong, cuu tinh, huu tung
khoa hoc » hoa hoc
dap nhan » dap nha, dac nhan, dam nhan
nhan dan » phan dau, gian dan, nhan tai
so sach » so sanh, bo sach, co sach
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: so sach hoc tap, nghien ((cuu thong) OR (cuu tong)) hoc nganh khoa hoc xa hoi dap nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach hoc tap, nghien ((cuu thong) OR (cuu tong)) hoc nganh khoa hoc xa hoi dap nhan dan".
• Adding a wildcard symbol may retrieve word variants: so sach hoc tap, nghien ((cuu thong) OR (cuu tong)) hoc nganh khoa hoc xa hoi dap nhan dan*.