Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
thanh dai » thanh hai, thanh tai, thanh dat
toc sach » hoc sach, doc sach, thuoc sach
mai khoi » mai khoa, tai khoa, cac khoi
truoc va » truc va, thuoc va, truong va
va thanh » gia thanh, ban thanh, va tinh
mai hoi » dai hoi, lai hoi, mai doi
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
me hoi » le hoi
va lam » van lam, va lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y nang ((me hoi) or (((mai hoi) OR (mai khoi)))). hieu va lam truoc va thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang ((me hoi) OR (((mai hoi) OR (mai khoi)))). hieu va lam truoc va thanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y nang ((me hoi) or (((mai hoi) OR (mai khoi)))). hieu va lam truoc va thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach y nang ((me hoi) or (((mai hoi) OR (mai khoi)))). hieu va lam truoc va thanh dai cua tre*.