Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
viec cac » viec cua, viec lam, viec va
hanh vai » hanh vi, hanh va, hanh tai
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
va san » va ban
loc va » luc va
san ky » sang ky, van ky, dan ky
cua te » cua tu

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 xa hoi. hieu ((viec cac) or (vien cac)) ((loc va) OR (hoc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va san ky nang xa hoi. hieu ((viec cac) OR (vien cac)) ((loc va) OR (hoc va)) hanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "va san ky nang xa hoi. hieu ((viec cac) or (vien cac)) ((loc va) OR (hoc va)) hanh vai cua te*".