Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
pham cuc » pham chuc, pham duc, pham cua
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
hieu va » lieu va, hieu qua
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
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 cac ky nang o hoi. ((hieu van) OR (hieu va)) pham cuc ban hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang o hoi. ((hieu van) OR (hieu va)) pham cuc ban hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang o hoi. ((hieu van) OR (hieu va)) pham cuc ban hanh dai cua tre*.