Perhaps you should try some spelling variations:
communication class » communication cross, communication case, communication crisis
part communication » parte communication, post communication, put communication
tradition 8.3 » tradition 3.3, tradition 3, tradition 3.1
technology e » technology 1, technology 3, technology 4
e tradition » et tradition, _ tradition, a tradition
crisis part » crisis pt, crisis phase
8.3 crisis » 13.3 crisis, 2.1 crisis, 3.1 crisis
class gas » class base, class case, class a
path 3 » path a, path c, path 2

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: "technology e tradition 8.3 crisis part communication class gas development ((path 3) OR (path _)).~".
• Adding a wildcard symbol may retrieve word variants: technology e tradition 8.3 crisis part communication class gas development ((path 3) OR (path _)).*.