Perhaps you should try some spelling variations:
introduction conventional » introduction international, introduction conceptual, introduction regional
interactions conditional » instructions conditional, alterations conditional, interaction conditions
methods session » methods section
session soft » session short, session ofthe, session state
soft drink » soft drinks

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((interactions conditional) or (introduction conventional)) methods session soft drink~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((interactions conditional) OR (introduction conventional)) methods session soft drink.
• Adding a wildcard symbol may retrieve word variants: ((interactions conditional) or (introduction conventional)) methods session soft drink*.