Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cac phoi » cac thoi, cac khoi, cay phoi
cap phoi » cap cho
viec cac » vien cac, viec cua, viec lam
cac hoc » cach hoc, cac hop, bac hoc
hoc ban » hoc bang, hoc dan, hoc bai
hai cua » thai cua, dai cua, hoi cua
cua te » cua tu
ky va » ly va, ke va, my va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky va ((cac phoi) or (cap phoi)). hieu viec cac hoc ban thanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky va ((cac phoi) OR (cap phoi)). hieu viec cac hoc ban thanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: tu cac ky va ((cac phoi) or (cap phoi)). hieu viec cac hoc ban thanh hai cua te*.