From Forsta Web Messenger you can search past messages, contacts, and more, from the search bar at the upper right hand of your screen.
To search words and phrases, simply type the word or phrase into the search bar. All results will populate in a list view. Click the desired thread and you will be taken to the point in the conversation when that searched word was used.
You can also search messages sent to, and from, a specific contact. Begin by typing either "to: contact.name search term" or "from: contact.name search term". All results will populate in a list view.