Perhaps you should try some spelling variations:
2.2 healthcare » 2.1 healthcare, 2.3 healthcare, 2.4 healthcare
22health care » hhealth care, health case, 4 healthcare
ehealth care » ehealth case, health case, health card
2 healthcare » _ healthcare, a healthcare

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: %((((((((22health care) OR (2.2 healthcare))) OR (ehealth care))) OR (2 healthcare))) OR (health care)) costs%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((((22health care) OR (2.2 healthcare))) or (ehealth care))) or (2 healthcare))) or (health care)) costs%22".
• Adding a wildcard symbol may retrieve word variants: %((((((((22health care) OR (2.2 healthcare))) or (ehealth care))) or (2 healthcare))) or (health care)) costs%22*.