Perhaps you should try some spelling variations:
phap toan » phap hoan, phap luan, phap phan
hoi doanh » hoa doanh, voi doanh, doi doanh
sach hoi » sach doi, sach moi, cach thoi
hoa toan » hoa tan, hop toan, hoa than
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
vu sach » vu bach, su sach, vu khach
hoi tai » hoc tai, hoi trac
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: vu sach hoi tai, nghien cuu mo ((hoa toan) or (phap toan)) khoa hoc xa hoi doanh nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach hoi tai, nghien cuu mo ((hoa toan) OR (phap toan)) khoa hoc xa hoi doanh nhan van.
• Adding a wildcard symbol may retrieve word variants: vu sach hoi tai, nghien cuu mo ((hoa toan) or (phap toan)) khoa hoc xa hoi doanh nhan van*.