Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
va doanh » van doanh, vay doanh, va danh
dang mau » dong mau, dang van, dang su
ky dang » ky nang, ky danh
mau hoi » cau hoi, mai hoi, mau ho
ve cham » va cham, ve chat, ve chim
cua tre » cua te, cuu tre, dua tren
vu cham » va cham, vu kham, tu cham
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky dang mau hoi. hieu ((ve cham) or (vu cham)) luc va doanh van ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang mau hoi. hieu ((ve cham) OR (vu cham)) luc va doanh van ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te sac ky dang mau hoi. hieu ((ve cham) or (vu cham)) luc va doanh van ((cua tre) or (cua triet))*.