Perhaps you should try some spelling variations:
truong doi » truong dai, trong doi, truong hoi
xa truong » cac truong
so sach » so sanh, bo sach, co sach
doi cua » dai cua, hoi cua
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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) OR (o hoi)). ((hieu va) OR (hieu qua)) cam tuc xa truong doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang ((x hoi) OR (o hoi)). ((hieu va) or (hieu qua)) cam tuc xa truong doi cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang ((x hoi) OR (o hoi)). ((hieu va) or (hieu qua)) cam tuc xa truong doi cua tre*.