Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
hanh tai » thanh tai, hang tai, han tai
thuoc va » thuc va, thuoc ma, thuong va
hieu ve » hieu va, hieu van
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
vu sach » vu bach, su sach, vu khach
vu nang » vuc nang, va nang, vu dang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
ve lam » va lam, de lam, se lam
v nang » va nang, van nang, voi nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((v nang) or (vu nang)) ma hoi. hieu ve lam thuoc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((v nang) OR (vu nang)) ma hoi. hieu ve lam thuoc va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ((v nang) or (vu nang)) ma hoi. hieu ve lam thuoc va hanh tai cua tre*.