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
tang ma » mang may, tang van
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
duc gia » quoc gia
cua te » cua tu

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 y ((tang ma) or (lang xa)) hoi. hieu va pham duc gia thanh doanh cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((tang ma) OR (lang xa)) hoi. hieu va pham duc gia thanh doanh cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach y ((tang ma) or (lang xa)) hoi. hieu va pham duc gia thanh doanh cua te*.