It's not recommended to parse HTML using regex
If it's something very simple and not exactly parsing you can try but I would suggest to use some HTML/XML parser.
You can use Python HTML parser instead, or some library like BeautifulSoup.
Anyway if you want to try to extract the data between tags you need to be more clear.
I'm not sure if what you want is to get text always between and tags. If so you should be able to do something like:
import re
matches = re.search(r'</strong>(.+)<strong>', '<strong>Description</strong> This is some test description 1<strong>Areas</strong>')
matches.group(1) # ' This is some test description 1'
If you want something more specific for Description opening and any other text closing you can say use the regex:
<strong>Description<\/strong>(.+)<strong>(.+)<\/strong>
But again I would say to you to have a look into some actual HTML/XML parser.