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
phan tai » pham tai, nhan tai, han tai
phan thi » pham thi, tran thi, phan tu
tu cach » tu cac
hoc xa » hoc ma

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 thoi tap, nghien cuu cong hoc nganh khoa hoc xa hoi va ((phan tai) OR (phan thi))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thoi tap, nghien cuu cong hoc nganh khoa hoc xa hoi va ((phan tai) OR (phan thi))".
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu cong hoc nganh khoa hoc xa hoi va ((phan tai) OR (phan thi))*.