Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
va thanh » gia thanh, ban thanh, va tinh
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
thuc va » thuc vat, thuc dan, thuc day
de cua » le cua, te cua, dieu cua
di cua » dai cua, doi cua, do cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
le nam » he nam, le na, te nam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky sang mai hoi. hieu ((le nam) OR (ly nam)) thuc va thanh ((di cua) OR (de cua)) viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky sang mai hoi. hieu ((le nam) or (ly nam)) thuc va thanh ((di cua) OR (de cua)) viet~".
• Adding a wildcard symbol may retrieve word variants: su sac ky sang mai hoi. hieu ((le nam) or (ly nam)) thuc va thanh ((di cua) OR (de cua)) viet*.