Perhaps you should try some spelling variations:
composed services » composite services, compute services, component service
complex services » complex service, complex surfaces, compute services
complex series » complex queries, complete series, compleat series

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: the ((complex series) OR (((complex services) OR (composed services)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "the ((complex series) or (((complex services) OR (composed services))))".
• Adding a wildcard symbol may retrieve word variants: the ((complex series) or (((complex services) OR (composed services))))*.