Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
cau nganh » cac nganh, chuc nganh, cau danh
khong hoc » khung hoc, thong hoc, khong thuoc
toc sach » hoc sach, doc sach, thuoc sach
sach moi » sach doi, sach hoi, bach mai
cuu cong » cua cong, thu cong, cac cong
cong cau » cong cu, cong chuc, thong cau
moi tap » moi tai, toi tap
va nhan » van nhan, ca nhan, va nha
va phan » van phan, va phat, va phap
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: toc sach moi tap, nghien cuu cong cau nganh khong hoc xa hoi ((va nhan) OR (va phan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach moi tap, nghien cuu cong cau nganh khong hoc xa hoi ((va nhan) OR (va phan)) van".
• Adding a wildcard symbol may retrieve word variants: toc sach moi tap, nghien cuu cong cau nganh khong hoc xa hoi ((va nhan) OR (va phan)) van*.