Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
water international » paper international, war international, acer international
rattan conservation » habitat conservation, coastal conservation, nature conservation
support rattan » support ratio

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply water international efforts. ) OR ( support rattan conservation efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply water international efforts. ) or ( support rattan conservation efforts. ))*.