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