Perhaps you should try some spelling variations:
multilayered reservoirs » multilayer reservoir, multilayered reflectors
multilayered reservoir » multilayered research
multipole reservoir » multiple reservoir, multiple reservoirs, multipurpose reservoir

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: ((((multipole reservoir) OR (multilayered reservoirs))) OR (multilayered reservoir)).
• Adding a wildcard symbol may retrieve word variants: ((((multipole reservoir) or (multilayered reservoirs))) or (multilayered reservoir))*.