Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
dich hoc » sinh hoc, hinh hoc, kinh hoc
tinh hoc » sinh hoc, tin hoc, hinh hoc
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((dich hoc) OR (tinh hoc)) tap, nghien cuu mon hoc nganh khoa hoc ma hoi va nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((dich hoc) OR (tinh hoc)) tap, nghien cuu mon hoc nganh khoa hoc ma hoi va nhan tai".
• Adding a wildcard symbol may retrieve word variants: tu ((dich hoc) OR (tinh hoc)) tap, nghien cuu mon hoc nganh khoa hoc ma hoi va nhan tai*.