Perhaps you should try some spelling variations:
"_ international investments policy series" » "_ international investment policy series", "_ international investors policy series", "_ international instruments policy series", "_ international investments poland series", "_ international investments political series"
"farm irrigation development projects series" » "farm education development projects series", "farm irrigation development policy series", "scale irrigation development projects series", "canal irrigation development projects series", "farm irrigation development project series", "farm irrigation development prospects series", "farm irrigation development projects sermons"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("farm irrigation development projects series") or ("_ international investments policy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("farm irrigation development projects series") OR ("_ international investments policy series"))*.
• Removing quotes may allow a broader search: (( farm irrigation development projects series ) or ( _ international investments policy series ))*.