Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nhanh khoa » nhan khoa, nganh khoa, hang khoa
anh ngoai » doanh ngoai, benh ngoai, hang ngoai
ngoai tap » ngoai tac, ngoai tai, ngoai tru
hoc nhanh » hoc nganh, hoc phan
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan
nhan tai » hang tai, van tai, toan tai
tu anh » tu hanh, tu manh, thu anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu anh ngoai tap, nghien thu cong hoc nhanh khoa hoc ma hoa dan ((nhan dan) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu anh ngoai tap, nghien thu cong hoc nhanh khoa hoc ma hoa dan ((nhan dan) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: tu anh ngoai tap, nghien thu cong hoc nhanh khoa hoc ma hoa dan ((nhan dan) or (nhan tai))*.