Perhaps you should try some spelling variations:
thuoc van » thuoc va, thuc van, thuoc ban
hanh vai » hanh vi, hanh va, hanh van
hanh tai » thanh tai, hang tai, han tai
dang xay » dang van, van xay
na thuoc » nha thuoc, nam thuoc, va thuoc
cuu tre » cua tre, cau tren, cau treo
nang ma » tang ma, sang ma, nang cao
hieu le » hieu ve, hieu he, hieu ly
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
le na » le nam, le va, le ta

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky ((nang ma) or (dang xay)) hoi. hieu le na thuoc van ((hanh vai) OR (hanh tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((nang ma) OR (dang xay)) hoi. hieu le na thuoc van ((hanh vai) OR (hanh tai)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((nang ma) or (dang xay)) hoi. hieu le na thuoc van ((hanh vai) OR (hanh tai)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang ma) or (dang xay)) hoi. hieu le na thuoc van ((hanh vai) OR (hanh tai)) cuu tre*.