Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cac truc » cau truc, cac tru, cac trung
hanh tai » hang tai, han tai, hinh tai
hieu van » hieu va, thien van, lieu va
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma
su xac » pu xac, su cac
su sac » su sach, su cac

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 sac) OR (su xac)) ky nang xa hoi. hieu van cac truc va ((hanh tai) OR (thanh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su xac)) ky nang xa hoi. hieu van cac truc va ((hanh tai) OR (thanh tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su xac)) ky nang xa hoi. hieu van cac truc va ((hanh tai) OR (thanh tai)) cua tre*.