Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh khoa
thuoc sach » hoc sach, nuoc sach, thuat sach
nganh nong » nganh cong
cuu thong » cuu thuong, cuu tong, cuu chong
thong cau » thong cac, thong cap, thong tu
sach hoi » sach doi, sach moi, cach thoi
nhan dan » phan dau, gian dan, nhan tai
hoi tap » hoi dap, hoc tap, hoi tai
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: thuoc sach hoi tap, nghien cuu thong cau ((nganh khong) OR (nganh nong)) hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach hoi tap, nghien cuu thong cau ((nganh khong) OR (nganh nong)) hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: thuoc sach hoi tap, nghien cuu thong cau ((nganh khong) OR (nganh nong)) hoc xa hoi va nhan dan*.