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
van thanh » ban thanh, van tuan
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
van nhan » van phan, danh nhan, van khanh
te cach » ve cach, te sach, tu cach
hoc lai » hoc dai, hoc bai, hoc lam
lai hoa » dai hoa, loai hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach thoi tap, nghien cuu cong hoc nganh khoa hoc lai hoa ((van nhan) or (van thanh)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach thoi tap, nghien cuu cong hoc nganh khoa hoc lai hoa ((van nhan) OR (van thanh)) dan.
• Adding a wildcard symbol may retrieve word variants: te cach thoi tap, nghien cuu cong hoc nganh khoa hoc lai hoa ((van nhan) or (van thanh)) dan*.