Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam thu » nam thu, cac thu, ca thu
thu dan » thuc dan, thu dang, thu ban
dan anh » dan canh, dan hanh, van anh
anh dao » lanh dao, hanh dao, anh dat
dao cua » dai cua, day cua, dan cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu va cam thu dan anh dao cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu va cam thu dan anh dao cua tre*.