Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc danh, hoc dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
cac thoi » cac toi, cac hop, cac tro
thoi dai » hoc dai, hoi dap, hoi dan
van nhan » van phan, van thanh, van khanh
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
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: tu cac thoi dai, nghien cuu mon hoc doanh hoa hoc xa hoi ((van nhan) OR (danh nhan)) va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac thoi dai, nghien cuu mon hoc doanh hoa hoc xa hoi ((van nhan) OR (danh nhan)) va".
• Adding a wildcard symbol may retrieve word variants: tu cac thoi dai, nghien cuu mon hoc doanh hoa hoc xa hoi ((van nhan) OR (danh nhan)) va*.