Perhaps you should try some spelling variations:
doanh vang » doanh van, doanh sang, doanh quang
lap hoat » tap hoa, dan hoat, lap dat
vang cua » mang cua, hang cua, tang cua
va doanh » van doanh, vay doanh, va danh
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
lap hai » lap tai, lap lai, lanh hai
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
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: su sach ((ky sang) or (ky tang)) ((lap hai) or (lap hoat)). hieu ve cam luc va doanh vang cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky tang)) ((lap hai) OR (lap hoat)). hieu ve cam luc va doanh vang cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky tang)) ((lap hai) or (lap hoat)). hieu ve cam luc va doanh vang cua te*.