Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc dan, hoc nganh
danh nhan » doanh nhan, thanh nhan, benh nhan
hanh thi » nhanh thi, hanh thoi, anh thi
cuu toan » cuu hoan, cua toan, huu toan
hoc danh » hoc dan, hoc anh, hoc hanh
khoa hoc » hoa hoc
hai danh » thai danh, hai anh, hai dang
nhan dan » phan dau, gian dan, nhan tai
thi dap » thi dai, thi dan, thi dep
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi
thuc » thu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuc hanh thi dap, nghien cuu toan ((hoc doanh) OR (hoc danh)) khoa hoc xa hai danh nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuc hanh thi dap, nghien cuu toan ((hoc doanh) OR (hoc danh)) khoa hoc xa hai danh nhan dan".
• Adding a wildcard symbol may retrieve word variants: thuc hanh thi dap, nghien cuu toan ((hoc doanh) OR (hoc danh)) khoa hoc xa hai danh nhan dan*.