Perhaps you should try some spelling variations:
hoi doanh » hoa doanh, voi doanh, doi doanh
thoi dap » hoi dap, thi dap, thoi dao
thoi dai » hoc dai, hoi dap, hoi dan
hoc tang » hoc bang, hoc tan, hoc tieng
tang hoa » hang hoa, tang ha, tang ho
nhan van » nhan dan, nhan va, phan van
vu cach » va cach, ve cach, vu bach
cuu co » huu co, cua co, cuu mo
hoc xa » hoc ma

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cach ((thoi dap) OR (thoi dai)), nghien cuu co hoc tang hoa hoc xa hoi doanh nhan van~".
• Adding a wildcard symbol may retrieve word variants: vu cach ((thoi dap) OR (thoi dai)), nghien cuu co hoc tang hoa hoc xa hoi doanh nhan van*.