Perhaps you should try some spelling variations:
international seminar » international series, international standard, international mining
rate international » rates international, trade international, raise international
irrigation scheme » irrigation systems
supply scale » supply case, supply scheme, supply social
support rate » support create, support ratio, support state

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply scale irrigation scheme. ) or ( support rate international seminar. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply scale irrigation scheme. ) OR ( support rate international seminar. )).
• Adding a wildcard symbol may retrieve word variants: (( supply scale irrigation scheme. ) or ( support rate international seminar. ))*.