Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec day » viec dat, viec xay, viec hay
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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: su sach ty nang xa hoi. hieu viec day ((thuc hanh) OR (thuc vat)) hanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu viec day ((thuc hanh) or (thuc vat)) hanh di cua tre*.