Search the text of every indexed drawing. A drawing matches when it has all your words somewhere in it, in any text.

Put words in quotes for an exact phrase: "bus coupler". Spaces, hyphens and underscores don't matter for phrases and longer words: "bus coupler" also finds BUSCOUPLER and BUS-COUPLER. Short codes such as CT or ACB are matched as written.

Search by function and arrangement, e.g. double busbar 33kV, since most old makers are obsolete. Choose a folder with no words to browse it.