Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
sai ky » sac ky
nang o » nang co, nang ho, nang ro
tu sai » tu bai, tu san, tu cai
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang o hoi. hieu van cac xuc ((van hanh) or (ban hanh)) vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang o hoi. hieu van cac xuc ((van hanh) OR (ban hanh)) vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang o hoi. hieu van cac xuc ((van hanh) or (ban hanh)) vi ((cua tre) or (cuu tre))*.