Perhaps you should try some spelling variations:
"support eu interaction series." » "support eu interactions series.", "support eu interaction studies.", "support eu interaction terms.", "support dem interaction series.", "support eco interaction series.", "support edm interaction series.", "support _ interaction series.", "support a interaction series.", "support 4 interaction series."
"support fare irrigation schemes." » "support fare irrigation scheme.", "support fare irrigation systems.", "support farm irrigation schemes.", "support large irrigation schemes.", "support scale irrigation schemes.", "support farmers irrigation schemes.", "support future irrigation schemes."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support eu interaction series.") or ("support fare irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support eu interaction series.") OR ("support fare irrigation schemes.")).
• Removing quotes may allow a broader search: (( support eu interaction series. ) or ( support fare irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("support eu interaction series.") or ("support fare irrigation schemes."))*.