Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang
ve cac » va cac, vien cac
xuc ca » xuc cam, xuc cua
ca dan » cac dan, ca dao
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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) OR (ly nang)) x hoi. hieu ve cac xuc ca dan vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((y nang) OR (ly nang)) x hoi. hieu ve cac xuc ca dan vi cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach ((y nang) OR (ly nang)) x hoi. hieu ve cac xuc ca dan vi cua tre*.