It can be quit difficult finding a specific ship by just looking and searching for it on the map. That is why ShipIntel has made finding a specific vessel an easy task by having a search function easily available.
In ShipIntel you will always find the search function at the top of the menu on the left.
If you click in this window and start typing you will find a list of vessels that include this letter combination. Type in more letters to narrow the search. You can also search for an IMO or MMSI number, but you will then have to type in the exact number(s).
Vessels is the default search, but if you are searching for a port click the Ports folder and you will find a list of ports that includes the same letter combination.
You can also narrow your search by using the filter function to the far right on your search bar. Click this and you get a choice of various filters that will narrow your search for a vessel or a port.