Perhaps you should try some spelling variations:
khach doanh » thach hoanh, hanh doanh
bach dinh » hoach dinh, xac dinh, bac ninh
doanh thu » doanh tai
dinh tri » chinh tri
vu khach » vu khanh, vu khac, vay khach
dung tri » dung tai, dung tren, dung sai
so sach » so sanh, bo sach, co sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( vu bach dinh tri ) or ( vu khach doanh thu ))) or ( so sach dung tri ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( vu bach dinh tri ) OR ( vu khach doanh thu ))) OR ( so sach dung tri )).
• Adding a wildcard symbol may retrieve word variants: (((( vu bach dinh tri ) or ( vu khach doanh thu ))) or ( so sach dung tri ))*.