Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thanh tai » thanh hai, thanh toan, doanh tai
hanh tai » hang tai, han tai, hinh tai
thuoc va » thuc va, thuoc ma, thuong va
cua tre » cua te, cuu tre, cua triet
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
hieu de » hieu ve, hieu he, hieu le
bach v » bach van
de lam » da lam, de la, se lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach v ((sang ma) OR (nang ma)) hoi. hieu de lam thuoc va ((hanh tai) or (thanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach v ((sang ma) OR (nang ma)) hoi. hieu de lam thuoc va ((hanh tai) OR (thanh tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach v ((sang ma) OR (nang ma)) hoi. hieu de lam thuoc va ((hanh tai) or (thanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu bach v ((sang ma) OR (nang ma)) hoi. hieu de lam thuoc va ((hanh tai) or (thanh tai)) cua tre*.