Those list may help you, if you have another just share 
- Parameters to identify relevancy between projects
- Qualitative risk management
- Best project costing methods
- Impact of issues on triple constraints
- Stakeholders influence on project success
- Impact of stakeholders on triple constraints
- Best methods of stakeholders analysis
- Team motivation techniques
- Agile team motivation
- Project selection framework
- Management by objectives
- Strategic planning for projects
- Management by objectives
- Model/Framework for WBS (Work Breakdown structure)
- Requirement gathering techniques
- Best templates/methods for requirement gathering
- Progressive elaboration for planning and requirement gathering
- Impact of organizational structure on projects
- Communication planning for multi-country projects
- Performance evaluation for projectized organization
- Performance evaluation methods for project managers
- Benefits of risk management on projects
- Best approaches for high level planning
- Project effort estimation tools and techniques
- Project effort estimation using COCOMO
- Project effort estimation using function point analysis
- Expert judgment in project effort estimation
- Impact of work environment on project management triple constraints