Perhaps you should try some spelling variations:
hoi doanh » hoa doanh, voi doanh, doi doanh
vu cach » va cach, ve cach, vu bach
toi tap » toi gap, toan tap, tong tap
hoi tai » hoc tai, hoi trac
tap hoa » tap hop, tap doan, tap toan
nhan va » nhan tai, nhan dan, nhan tao
cuu mo » cuu mot, cuu ho, cuu ma
mo hoc » mon hoc, co 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: vu cach ((toi tap) or (hoi tai)), nghien cuu mo hoc tap hoa hoc xa hoi doanh nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cach ((toi tap) OR (hoi tai)), nghien cuu mo hoc tap hoa hoc xa hoi doanh nhan va.
• Adding a wildcard symbol may retrieve word variants: vu cach ((toi tap) or (hoi tai)), nghien cuu mo hoc tap hoa hoc xa hoi doanh nhan va*.