Perhaps you should try some spelling variations:
systems supporting » system support
health assistance » health substance, cash assistance
"health evidence network synthesis report" » "health science network synthesis report", "health guidance network synthesis report", "health dence network synthesis report"
health distance » healthy distance, earth distance, health resistance
systems support » system support, system supporting

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: (("health evidence network synthesis report") OR ((("((health distance) OR (health assistance)) network systems support") OR ("((health distance) OR (health assistance)) network systems supporting")))).
• Removing quotes may allow a broader search: (( health evidence network synthesis report ) or ((( ((health distance) OR (health assistance)) network systems support ) or ( ((health distance) OR (health assistance)) network systems supporting )))).
• Adding a wildcard symbol may retrieve word variants: (("health evidence network synthesis report") or ((("((health distance) OR (health assistance)) network systems support") or ("((health distance) OR (health assistance)) network systems supporting"))))*.