Perhaps you should try some spelling variations:
thanh doanh » hanh doanh, thanh toan, chinh doanh
doanh cua » doanh luan
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cua su » qua su

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 tu nang xa hoi. hieu van cam ((duc gia) or (quoc gia)) thanh doanh cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang xa hoi. hieu van cam ((duc gia) OR (quoc gia)) thanh doanh cua su.
• Adding a wildcard symbol may retrieve word variants: thu sach tu nang xa hoi. hieu van cam ((duc gia) or (quoc gia)) thanh doanh cua su*.