Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
cao hoat » cac hoat, co hoat, cao chat
hang via » hang va, hang vi, hang giao
tu sach » thu sach, su sach, te sach
va hang » van hang, va nang, va lang
via cua » gia cua, gian cua, giau cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
lam tu » nam tu, dam tu, lam vu
cam tu » cam thu, nam tu, dam tu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang cao hoat. hieu viec ((lam tu) OR (cam tu)) va hang via cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoat. hieu viec ((lam tu) OR (cam tu)) va hang via cua tre*.