HTML+CGI (if __name__ == '__main__')

[marienbad]

You need to move the "if __name__=="__main__"part, it needs to go at the bottom of the code:

if __name__=="__main__":
    htmlHead()
    main()
    htmlTail()

Also, you never appear to call def collect_result(result): and I think you maybe need to split the searching code and the page making code.