Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
nhan tai » van tai, toan tai
hang tai » hang va, dung tai
ve cach » va cach, ve cac, ve canh
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: ve cach thoi tap, nghien cuu cong hoc nganh khoa hoc ma hoi va ((nhan tai) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cach thoi tap, nghien cuu cong hoc nganh khoa hoc ma hoi va ((nhan tai) OR (hang tai)).
• Adding a wildcard symbol may retrieve word variants: ve cach thoi tap, nghien cuu cong hoc nganh khoa hoc ma hoi va ((nhan tai) or (hang tai))*.