Solution : https://service.sap.com/sap/support/notes/1164979 (SAP Service marketplace login required)
Key words : 
0 including enhancement package 1 --> sap netweaver library --> sap library --> sap netweaver library --> sap netweaver, default_host  -> sap  -> es  -> saplinkdefault_host  -> sap  -> es  -> searchthe error, /saphelp_nw70ehp1/helpdata/de/5b/590829c10b4eecac5db61c9291eb08/frameset, embedded search serves sap business suite applications, section describes software related issues, key capability --> search --> search services, sap business suite application, section describes generic info, sap netweaver enterprise search 7, 01] activating web dynpro serviceshttp
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