Perhaps you should try some spelling variations:
"zebra danio vertebrates physiology." » "zebra danio invertebrates physiology.", "zebra land vertebrates physiology.", "zebra eating vertebrates physiology.", "zebra marine vertebrates physiology."
"debra danio membranes physiology." » "debra danio membrane physiology.", "debra danio membranes biology.", "debra danio membranes technology.", "debra nano membranes physiology.", "debra aao membranes physiology.", "debra bio membranes physiology.", "zebra danios membranes physiology."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("debra danio membranes physiology.") or ("zebra danio vertebrates physiology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("debra danio membranes physiology.") OR ("zebra danio vertebrates physiology.")).
• Removing quotes may allow a broader search: (( debra danio membranes physiology. ) or ( zebra danio vertebrates physiology. )).
• Adding a wildcard symbol may retrieve word variants: (("debra danio membranes physiology.") or ("zebra danio vertebrates physiology."))*.