Perhaps you should try some spelling variations:
8.4 modern » 8.4 models, 8.4 model, 8.4 mode
5.4 models » 2.4 models
24 modern » 24 model
14 modern » 8 modern, 14 model, 4 moderne
14 models » 14 model

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22history%((24 modern) OR (((((8.4 modern) OR (((14 modern) OR (14 models))))) OR (5.4 models))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22history%((24 modern) or (((((8.4 modern) or (((14 modern) OR (14 models))))) or (5.4 models))))%22".
• Adding a wildcard symbol may retrieve word variants: %22history%((24 modern) or (((((8.4 modern) or (((14 modern) OR (14 models))))) or (5.4 models))))%22*.