Perhaps you should try some spelling variations:
doanh khoa » toan khoa
hoc doanh » hoa doanh, hoc danh, hoc dan
ban thoi » ban thi, ban toi, ban thuoc
ban thai » ban than, ban thi, ban tai
khoa hoc » hoa hoc
van gian » van giang, dan gian, van giao
gian dan » gian lang
cuu mot » cua mot, cuu mo, huu mot
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 ((ban thoi) OR (ban thai)) dap, nghien cuu mot hoc doanh khoa hoc xa hoi van gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((ban thoi) OR (ban thai)) dap, nghien cuu mot hoc doanh khoa hoc xa hoi van gian dan".
• Adding a wildcard symbol may retrieve word variants: thu ((ban thoi) OR (ban thai)) dap, nghien cuu mot hoc doanh khoa hoc xa hoi van gian dan*.