Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
vai cua » dai cua, hai cua, lai cua
tuc va » thuc va, truc va, duc va
va san » va ban
san ky » sang ky, van ky, dan ky
cua te » cua tu
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.

• Performing a fuzzy search may retrieve terms with similar spellings: va san ky nang ((x hoi) OR (o hoi)). hieu viec cac ((tuc va) or (tuc xa)) thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va san ky nang ((x hoi) OR (o hoi)). hieu viec cac ((tuc va) OR (tuc xa)) thanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "va san ky nang ((x hoi) OR (o hoi)). hieu viec cac ((tuc va) or (tuc xa)) thanh vai cua te*".