Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
van vat » van chat, nhan vat
vat cua » mat cua, bat cua, dat cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va hoc » van hoc
x hoi » xa hoi, o hoi, x ho
nuoc » quoc, duoc, ngoc

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 x hoi. lieu va hoc nuoc va van vat cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. lieu va hoc nuoc va van vat cua tre*.