Perhaps you should try some spelling variations:
data mechatronics » canal mechatronics, a mechatronics, data mechanics
2c mechatronics » c mechatronics, etc mechatronics, _ mechatronics
_ mechanics » _ mechanical, _ mechanisms, _ mechanism
2 robotics » _ robotics, a robotics, 2 robotic
6 robotics » _ robotics, 6 robotic, a robotics

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: %22control%((2 robotics) OR (6 robotics))%((((2c mechatronics) OR (data mechatronics))) OR (_ mechanics))%22.
• Adding a wildcard symbol may retrieve word variants: %22control%((2 robotics) or (6 robotics))%((((2c mechatronics) or (data mechatronics))) or (_ mechanics))%22*.