Perhaps you should try some spelling variations:
doanh vi » doanh va, doan vi, doanh vien
va doanh » van doanh, vay doanh, va danh
cua tre » cua te, cuu tre, cua triet
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
ve cham » ve chat, vu cham, ve chim
va cham » va chat, va tham
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

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