It is not as if other countries cannot help in solving the problems in Nigeria. Many have helped as individuals and as a group to provide solutions but the truth is that both our individuals and governments do not want to adhere.
For example, about 5 months ago, Microsoft opened African Development Centre in Lagos state to help Nigerians develop in ICT. This is to bridge the gap between theory learning and practical knowledge.
Also, some scholarships have been given to Nigerians by foreign institutions. International bodies have in one way or the other contributed their ideas in solving Nigeria issues.
But above all, know that our country is our country and we are expected to solve our issues. Do not expect other countries to give you 100% solution because they have their own issues to think about and solve.