Question: So I would like to only view certain pages in one explorer in google analytics how do i do so?

For example:

example.com/contact < (exact match and not anything beyond contact/example)

example.com/blog

example.com/how-to

I tried using segments with the conditions "exact matches" but what happen is that it still shows me all the pages that is not relevant to the above conditions when I view the segment on my behavior> site content> all pages.

And advance filtering limits to just "AND" even I tried using "matching regexp" with "/(contact|blog|how-to)" It still show everything after "/contact/example/example"

Any idea how to solve this issue?

Answer: 
Try to conclude your regex with $ (/how-to$), meaning "ends with the preceding character. GA regex is a bit overeager and assumes you want to match anything that contains your string, so you have to specifically terminate with the [ends-with metacharacter](http://regexone.com/lesson/line_beginning_end).
You need to learn about Analytics Regular Expressions (or Regex).

'$' means 'ends here'
'^' means 'begins here'
'|' means 'or'

So ^/page1$ will search for exactly that page, and ^/page1$|^/page2$ will search for one of the two pages.

Now Google Analytics will cut out the hostname, so you'll want to search or filter for:
^/contact$|^/blog$|^/how-to$

There are many more of these ('.' means 'any character', for example) and you can find guides online such as this one <https://support.google.com/analytics/answer/1034324?hl=en>