Perhaps you should try some spelling variations:
truong doi » truong dai, trong doi, truong moi
truong hoi » truong hoc, truong khoa, truong dai
so sach » so sanh, bo sach, co sach
cam tuc » cam xuc, cam tu, nam thuc
sach ty » sach y, sach tu, sach thu
hieu va » lieu va
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang x hoi. ((hieu va) OR (hieu qua)) cam tuc xa ((truong doi) OR (truong hoi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang x hoi. ((hieu va) or (hieu qua)) cam tuc xa ((truong doi) OR (truong hoi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang x hoi. ((hieu va) or (hieu qua)) cam tuc xa ((truong doi) OR (truong hoi)) cua tre*.