Perhaps you should try some spelling variations:
dissertation easier » dissertation based, dissertation using, dissertation facing
dissertation basic » dissertation based, dissertation topic, dissertation facing
dimensions causes » dimensions based, dimensions lenses, dimensions chapter
causes testing » causes eating, houses testing, gases testing

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: "information ((dissertation basic) OR (dissertation easier)) dimensions causes testing~".
• Adding a wildcard symbol may retrieve word variants: information ((dissertation basic) OR (dissertation easier)) dimensions causes testing*.