Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh oai
thanh tai » thanh hai, thanh toan, doanh tai
lam thuoc » nam thuoc, am thuc, cay thuoc
thuoc va » thuc va, thuoc ma, thuong va
lang mai » lang dai, lang hai, lang man
hieu van » hieu va, thien van, lieu va
van lam » van nam
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
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: tu ((sach y) or (sac ky)) lang mai hoi. hieu van lam thuoc va ((thanh vai) or (thanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sac ky)) lang mai hoi. hieu van lam thuoc va ((thanh vai) OR (thanh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sac ky)) lang mai hoi. hieu van lam thuoc va ((thanh vai) or (thanh tai)) cua tre*.