Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nhanh hung » thanh hung, nhanh hong, nhanh chuong
cach thuc » anh thuc, cac thu
hoc nhanh » hoc nganh, hoc phan
thuc tap » tuc tap, thuc thai, thuc vat
huu khoa » cuu khoa, huy khoa, hau khoa
khoa hoc » hoa hoc
hung hoa » hang hoa, ung hoa, trung hoa
nhan van » nhan dan, nhan va, phan van
lang van » dang van, tang van, hoang van
tu cach » tu cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thuc tap, nghien huu khoa hoc nhanh hung hoa xa hoi va ((nhan van) or (lang van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thuc tap, nghien huu khoa hoc nhanh hung hoa xa hoi va ((nhan van) OR (lang van)).
• Adding a wildcard symbol may retrieve word variants: tu cach thuc tap, nghien huu khoa hoc nhanh hung hoa xa hoi va ((nhan van) or (lang van))*.