Perhaps you should try some spelling variations:
biochemical activities » biological activities, biochemical actions
technical activities » medical activities, technical capabilities, physical activities
22fiscal activities » fiscal activities, medical activities, musical activities

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: %((((22fiscal activities) OR (technical activities))) OR (biochemical activities))%22.
• Adding a wildcard symbol may retrieve word variants: %((((22fiscal activities) or (technical activities))) or (biochemical activities))%22*.