Perhaps you should try some spelling variations:
soc doanh » so doanh, voi doanh, von doanh
hoa doanh » toan doanh, hoa dan
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
sach hoc » cach hoc, sach hoi, mach hoc
cuu long » cuu cong, cuu tong, cuu nang
khoa hoc » hoa hoc
tu sach » thu sach, su sach, te sach
hai van » thai van, ha van, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach hoc tap, nghien cuu long ((soc doanh) or (hoa doanh)) khoa hoc xa hai van thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu long ((soc doanh) OR (hoa doanh)) khoa hoc xa hai van thanh van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu long ((soc doanh) or (hoa doanh)) khoa hoc xa hai van thanh van*.