Perhaps you should try some spelling variations:
"international comparison of agricultural and biosystems engineering" » "international cooperation of agricultural and biosystems engineering", "international comparison of agricultural and systems engineering", "international comparison of agricultural and ecosystem engineering", "international comparison of agricultural and system engineering"
"international comparison of agricultural and esystems engineering" » "international cooperation of agricultural and esystems engineering", "international comparison of agricultural and systems engineering", "international comparison of agricultural and system engineering", "international comparison of agricultural and systems bioengineering"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"international comparison of agricultural and biosystems engineering\") OR (\"international comparison of agricultural and esystems engineering\"))".
• Removing quotes may allow a broader search: (( international comparison of agricultural and biosystems engineering ) OR ( international comparison of agricultural and esystems engineering )).
• Adding a wildcard symbol may retrieve word variants: (("international comparison of agricultural and biosystems engineering") OR ("international comparison of agricultural and esystems engineering"))*.