Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
chu dich » chu tich, chu thich, hut dich
chu dinh » vu dinh, chu manh, co dinh
khoa hoc » hoa hoc
toan tai » toan tap, doanh tai, toan ban
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va toan » van toan, bai toan, tap toan
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: ((chu dich) OR (chu dinh)) hoc tap, nghien cuu mon hoc nganh khoa hoc ma hoi va toan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((chu dich) OR (chu dinh)) hoc tap, nghien cuu mon hoc nganh khoa hoc ma hoi va toan tai".
• Adding a wildcard symbol may retrieve word variants: ((chu dich) OR (chu dinh)) hoc tap, nghien cuu mon hoc nganh khoa hoc ma hoi va toan tai*.