Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
so doanh » so danh, su doanh, hoa doanh
doanh ly » doanh va, dinh ly, doanh _
cua viet » ca viet, hoa viet, cua vat
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so doanh ly ((nang ma) or (nang cao)) hoi. hieu ve cam xuc ((va hanh) or (ban thanh)) di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so doanh ly ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc ((va hanh) OR (ban thanh)) di cua viet.
• Adding a wildcard symbol may retrieve word variants: so doanh ly ((nang ma) or (nang cao)) hoi. hieu ve cam xuc ((va hanh) or (ban thanh)) di cua viet*.