Perhaps you should try some spelling variations:
pham cuu » pham huu, cham cuu, pham cua
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
cuu ban » cuu van, cua ban, cuu san
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
o hoi » o hoc, o hai, o hoa

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) OR (co hoi)). hieu va pham cuu ban hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((o hoi) OR (co hoi)). hieu va pham cuu ban hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((o hoi) OR (co hoi)). hieu va pham cuu ban hanh dai cua tre*.