Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
cach toi » cach thoi, cac toi, cach noi
toan hoc » toan khoa, van hoc, hoa hoc
su cach » su sach, tu cach, su cac
toi tap » toi gap, toan tap, tong tap
mon hoc » dong hoc
hoi van » hoi va, hoi dan, hai van
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: su cach toi tap, nghien cuu ((mon hoc) or (toan hoc)) nganh khong hoc xa hoi van thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach toi tap, nghien cuu ((mon hoc) OR (toan hoc)) nganh khong hoc xa hoi van thanh van.
• Adding a wildcard symbol may retrieve word variants: su cach toi tap, nghien cuu ((mon hoc) or (toan hoc)) nganh khong hoc xa hoi van thanh van*.