1. Attack the weaker opponent. This is a common strategy in doubles when the opponents have different skill levels.

2. Attacking the center line. Hitting the shuttlecock between your opponents, causing them to either both attempt to retrieve it or to think the other will get it.

3. Clearing (hitting the shuttle deep to the opponents' back boundary line). This can be used when opponents are not good at smashing from the backcourt.

4. Net kill (the shuttle is aimed steeply dropping towards the floor, close to the net). This strategy requires good forecourt technique, quick footwork, and a good coordination between partners.

I encourage you to try out these strategies. They should bring you good results.