Perhaps you should try some spelling variations:
nganh thuong » anh thuong, doanh thuong, nang thuong
thuong hoc » truong hoc, tuong hoc, thuong ho
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
huu toan » huu tuan, cuu toan, huy toan
toan hoc » toan khoa, van hoc, hoa hoc
dan nhan » danh nhan, dan chan, van nhan
nhan dan » phan dau, gian dan, nhan tai
so cach » so sach, co cach, mot cach
hoi dan » hoa dan, hoc dan, hoi dap
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: ((so cach) OR (loi cach)) thoi tap, nhiem huu toan hoc nganh thuong hoc xa hoi dan nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so cach) OR (loi cach)) thoi tap, nhiem huu toan hoc nganh thuong hoc xa hoi dan nhan dan".
• Adding a wildcard symbol may retrieve word variants: ((so cach) OR (loi cach)) thoi tap, nhiem huu toan hoc nganh thuong hoc xa hoi dan nhan dan*.