Yes u can do it.
In google u can use the
site: operator in the search box.
If you include [site:] in your query, Google will restrict the results to those websites in the given domain. For instance, [help site:
www.google.com] will find pages about help within
www.google.com. [help site:com] will find pages about help within .com urls. Note there can be no space between the "site:" and the domain.