Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
canh thoi » cach thoi, hanh thoi, anh tho
hoc doanh » hoa doanh, hoc danh, hoc dan
thu canh » thuc hanh, thu cong, thu ban
thoi dap » hoi dap, thoi dai, thi dap
khoa hoc » hoa hoc
phan dan » phan dang, nhan dan, phan van
phan dau » phan tu, hang dau
mot hoc » mon hoc, mo hoc, mot goc
hoi van » hoi va, hoi dan, hai van
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: thu canh thoi dap, nghien cua mot hoc doanh khoa hoc xa hoi van ((phan dan) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu canh thoi dap, nghien cua mot hoc doanh khoa hoc xa hoi van ((phan dan) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: thu canh thoi dap, nghien cua mot hoc doanh khoa hoc xa hoi van ((phan dan) OR (phan dau))*.