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

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) OR (vuc nang)))) ma hoi. hieu ve lam truoc 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) OR (vuc nang)))) ma hoi. hieu ve lam truoc va hanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((v nang) or (((vu nang) OR (vuc nang)))) ma hoi. hieu ve lam truoc va hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ((v nang) or (((vu nang) OR (vuc nang)))) ma hoi. hieu ve lam truoc va hanh tai cua tre*.