Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
benh phan » benh phau, kenh phan, benh than
cach hoc » cach thuc, cach thoi, dich hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
tu cach » tu cac
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: tu cach hoc tap, nghien cuu cong hoc nganh hoa hoc ma hoi ((benh phan) OR (benh nhan)) dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu cong hoc nganh hoa hoc ma hoi ((benh phan) OR (benh nhan)) dau".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu cong hoc nganh hoa hoc ma hoi ((benh phan) OR (benh nhan)) dau*.