Perhaps you should try some spelling variations:
doanh thuong » doan phuong, anh thuong, dinh thuong
luan phan » luan van, luan hoan
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu long » cuu cong, cuu tong, cuu nang
co doanh » cho doanh, cao doanh, so doanh
hoi luan » hoa luan, hoc luan, khoa luan
phan dau » phan tu, hang dau
long co » dong co, cong co, lang co
ho xa » hoc xa, cho xa, ho ba

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoc tap, nghien cuu long co doanh thuong ((ho xa) or (hoa xa)) hoi luan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoc tap, nghien cuu long co doanh thuong ((ho xa) OR (hoa xa)) hoi luan phan dau.
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cuu long co doanh thuong ((ho xa) or (hoa xa)) hoi luan phan dau*.