Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong hoc » khung hoc, thong hoc, khong thuoc
cach toi » cach thoi, cac toi, cach noi
dong hoc » dong co, dong luc
lang dau » hang dau, xang dau, nang dau
tu cach » tu cac
toi tap » toi gap, toan tap, tong tap
mon hoc » toan hoc
va lang » va nang, hoa lang
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 cach toi tap, nghien cuu ((mon hoc) or (dong hoc)) nganh khong hoc xa hoi va lang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach toi tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh khong hoc xa hoi va lang dau.
• Adding a wildcard symbol may retrieve word variants: tu cach toi tap, nghien cuu ((mon hoc) or (dong hoc)) nganh khong hoc xa hoi va lang dau*.