Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hanh hoc » thanh hoc, hinh hoc, anh hoc
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
mo hoc » co hoc
ma hoi » mai hoi, xa hoi, ma hoa
thuc » thu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuc hanh hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc ma hoi va nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuc hanh hoc tap, nghien cuu ((mo hoc) OR (mon hoc)) nganh khoa hoc ma hoi va nhan tai.
• Adding a wildcard symbol may retrieve word variants: thuc hanh hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc ma hoi va nhan tai*.