Perhaps you should try some spelling variations:
"health guidance network systems report" » "health guidance networks systems report"
"health defence network systems report" » "health defence networks systems report"
"health reference network systems report" » "health reference networks systems report", "health references network systems report"
"health dence network systems support" » "health dence networks systems support", "health pence network systems support", "health hence network systems support", "health dense network systems support"
"health substance network synthesis report" » "health substance networks synthesis report"

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 guidance network systems report") OR ((((("health defence network systems report") OR ("health reference network systems report"))) OR ("health dence network systems support"))))) OR ("health substance network synthesis report")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"health guidance network systems report\") or (((((\"health defence network systems report\") OR (\"health reference network systems report\"))) or (\"health dence network systems support\"))))) or (\"health substance network synthesis report\"))".
• Removing quotes may allow a broader search: (((( health guidance network systems report ) or ((((( health defence network systems report ) OR ( health reference network systems report ))) or ( health dence network systems support ))))) or ( health substance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((("health guidance network systems report") or ((((("health defence network systems report") OR ("health reference network systems report"))) or ("health dence network systems support"))))) or ("health substance network synthesis report"))*.