How to lookup on a part of the words?

Before I can invest time in this I need to be convinced of the use. Here's my argument to say that your list is useless. Please correct me where I'm wrong.

1. Your problem is an old one. Stock exchanges have beenn dealing with it for over 100 years. The solution they found was to ignore the name. They use the symbol instead of a name.
2. The symol identifies a security, not a company. Some companies have different types of shares which are traded under diffferent symbols. By replacing the symbol with a name the ability to differentiate is lost.
3. Some shares are traded at different exchanges under different symbols. However, the same symbol at different exchanges doesn't guarantee that the security is the same. A different symbol doesn't guarantee that the security is different if the exchange isn't the same.
4. Yahoo is not an exchange. It doesn't assign symbols. Instead if uses symbols from a system supplied by someone else, perhaps Bloomberg or Reuters. But Bloomberg isn't an exchange, either. They created symbols to be able to identify securities (not companies!) regardless of the exchange where they are traded. Then Reuters did the same. Now it's your turn. Why don't you just take the list from one of these? It's guaranteed to be much better than what you can ever hope to create yourself.

Of course, that depends upon your purpose. So, what's the purpose? But if your aim were to create a list for arbitraging purposes (compare prices for the same share at different exchanges) the company name can't be made the key because symbols refer to securities, not companies.