Perhaps you should try some spelling variations:
bases synthesis » based synthesis, images synthesis, dyes synthesis
health science » health sciences
edrf synthesis » wdf synthesis, f synthesis, paf synthesis
science bases » science based, science base, science basis
health guided » health guide, hath guided, health guido
guided edrf » guided edit, guided edits, guided entry

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 science bases synthesis report ) OR ( health guided edrf synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (( health science bases synthesis report ) or ( health guided edrf synthesis report ))*.