Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thuoc va » thuc va, thuoc ma, thuong va
va thanh » gia thanh, ban thanh, va tinh
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
cua tre » cuu tre, cua triet, dua tren
tu cai » tu cac, tu can, tu bai
he nam » ha nam, nghe nam
cai ky » cao ky, cac ky, cam ky
ve nam » va nam, le nam, te nam
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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: tu cai ky sang ma hoi. hieu ((ve nam) OR (he nam)) thuoc va thanh van ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cai ky sang ma hoi. hieu ((ve nam) OR (he nam)) thuoc va thanh van ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: tu cai ky sang ma hoi. hieu ((ve nam) OR (he nam)) thuoc va thanh van ((cua tre) or (cua te))*.