Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, thanh toan
hanh thoi » hanh thuoc, nhanh thai, hanh noi
thoi dap » hoi dap, thoi dai, thi dap
dan khoa » dang khoa, da khoa, san khoa
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
van hoc » van hoa
xa thai » ca thai, a thai, da thai
xa hai » xua hai, xa hoi, xa dai
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 thoi dap, nghien cuu van hoc dan khoa hoc ((xa hai) OR (xa thai)) thanh nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuc hanh thoi dap, nghien cuu van hoc dan khoa hoc ((xa hai) OR (xa thai)) thanh nhan dan".
• Adding a wildcard symbol may retrieve word variants: thuc hanh thoi dap, nghien cuu van hoc dan khoa hoc ((xa hai) OR (xa thai)) thanh nhan dan*.