Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
tinh hoc » sinh hoc, tin hoc, hinh hoc
khoa hoc » hoa hoc
toan tai » toan tap, doanh tai, toan ban
te tinh » tue tinh, tre tinh, ve tinh
mon hoc » toan hoc, dong hoc
va toan » van toan, bai toan, tap toan
mo hoc » co hoc
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: te tinh hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc xa hoi va toan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tinh hoc tap, nghien cuu ((mo hoc) OR (mon hoc)) nganh khoa hoc xa hoi va toan tai.
• Adding a wildcard symbol may retrieve word variants: te tinh hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc xa hoi va toan tai*.