Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
doanh van » doan van, doanh va, doanh ban
mai khoi » mai khoa, tai khoa, cac khoi
cau tren » cu tren, dau tren, ca tren
thu sac » thu sach, thu san, thu xac
ky sang » ky nang, ky dang, ky tang
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
xuc vay » xuc hay
van cau » van dau, van hau, van chat
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky sang ((mai hoi) or (mai khoi)). hieu ve cam xuc vay doanh van cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky sang ((mai hoi) OR (mai khoi)). hieu ve cam xuc vay doanh van cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sac ky sang ((mai hoi) or (mai khoi)). hieu ve cam xuc vay doanh van cau tren*.