Perhaps you should try some spelling variations:
22primary health » primary heart
primate health » promote health, climate health, primate heart
primary heat » primary heart, primary wheat, primary head
2f uganda » 21 uganda, _ uganda, v uganda
2 uganda » 21 uganda, _ uganda, v uganda

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: %((((((((22primary health) OR (primate health))) OR (primary health))) OR (primary heat))) OR (((privacy health) OR (private health)))) care %((2f uganda) OR (2 uganda))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((((22primary health) OR (primate health))) or (primary health))) or (primary heat))) or (((privacy health) or (private health)))) care %((2f uganda) or (2 uganda))%22".
• Adding a wildcard symbol may retrieve word variants: %((((((((22primary health) OR (primate health))) or (primary health))) or (primary heat))) or (((privacy health) or (private health)))) care %((2f uganda) or (2 uganda))%22*.