In FrameWork manager, click the Search icon (if you don't see it, go through Menu View--Search).
In "Search For" box give the field name or a part of it, like COUNTRY for example, click search, you ll get the full list of all types which contains this string , the location tells you where you can find it.
If you want to narrow your search scope, use the CLASS box, for fields you can select "Query Item" to see only fields in the search result box.
If you are using Oracle database you can also use SQL+ to find fields and tables:
select column_name, table_name from user_tab_cols where column_name like 'COUNTRY%';