Perhaps you should try some spelling variations:
online litigation » online estimation, online navigation, online distillation
online migration » online calibration, machine migration, online simulation
online citation » inline citation, online station, online ideation

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: ((online litigation) OR (((online citation) OR (online migration)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((online litigation) or (((online citation) OR (online migration))))".
• Adding a wildcard symbol may retrieve word variants: ((online litigation) or (((online citation) OR (online migration))))*.