Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc danh, hoc nganh
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
cua phan » cua nhan, cua phap, cua han
phan dau » phan tu, hang dau
tu sach » thu sach, su sach, te sach
hoi cua » hoi chuc
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 sach hoc tap, nghien cuu mo ((hoc doanh) OR (hoc dan)) khoa hoc xa hoi cua phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mo ((hoc doanh) OR (hoc dan)) khoa hoc xa hoi cua phan dau".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mo ((hoc doanh) OR (hoc dan)) khoa hoc xa hoi cua phan dau*.