Perhaps you should try some spelling variations:
international conservation » international cooperation, international consultation, international construction
proceedings decisions » procedures decision, proceedings editors, process decisions
proceedings designing » proceedings training, proceedings relating, proceedings fostering
concepts carol » concepts care, concepts carmen, concepts cases

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

• Performing a fuzzy search may retrieve terms with similar spellings: international conservation ((proceedings decisions) OR (proceedings designing)) concepts carol~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "international conservation ((proceedings decisions) OR (proceedings designing)) concepts carol".
• Adding a wildcard symbol may retrieve word variants: international conservation ((proceedings decisions) OR (proceedings designing)) concepts carol*.