Perhaps you should try some spelling variations:
doanh khoa » toan khoa
thuc cach » thuoc sach, truoc cach, thuc hanh
hoc doanh » hoa doanh, hoc danh, hoc dan
ban thanh » ban hanh, ban hang
thanh dan » thanh san, thanh van, thanh dat
thoi dap » hoi dap, thoi dai, thoi dao
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
thi dap » thi dai, thi dan, thi dep
hoi ban » hoi dan, hoi bai, doi ban
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: thuc cach ((thoi dap) OR (thi dap)), nghien cuu dong hoc doanh khoa hoc xa hoi ban thanh dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuc cach ((thoi dap) OR (thi dap)), nghien cuu dong hoc doanh khoa hoc xa hoi ban thanh dan".
• Adding a wildcard symbol may retrieve word variants: thuc cach ((thoi dap) OR (thi dap)), nghien cuu dong hoc doanh khoa hoc xa hoi ban thanh dan*.