What are some strategies for finding combinations that involve advanced transportation systems in Little Alchemy 2?

In Little Alchemy 2, creating advanced transportation systems involves combining basic elements to form more complex ones. Here are some strategies and specific combinations to help you discover advanced transportation systems:

1. Start with Basic Elements: Begin by creating foundational elements like Metal, Wheel, and Energy. These are essential building blocks for many transportation-related items.

2. Create a Car:
- Combine Wheel + Wheel to make a Cart.
- Combine Cart + Horse to make a Horse and Cart.
- Combine Horse and Cart + Engine to make a Car.

3. Create a Train:
- Combine Metal + Wheel to make a Train Car.
- Combine Train Car + Train Car to make a Train.

4. Create an Airplane:
- Combine Metal + Bird to make an Airplane.
- Alternatively, combine Metal + Sky to make an Airplane.

5. Create a Boat:
- Combine Water + Wood to make a Boat.
- Combine Boat + Wind to make a Sailboat.

6. Create a Rocket:
- Combine Metal + Fire to make a Rocket.
- Combine Rocket + Space to make a Spaceship.

7. Create a Submarine:
- Combine Metal + Water to make a Submarine.

8. Create a Helicopter:
- Combine Airplane + Blade to make a Helicopter.

9. Create a Bicycle:
- Combine Wheel + Wheel to make a Bicycle.

10. Create a Motorcycle:
- Combine Bicycle + Engine to make a Motorcycle.

11. Create a Truck:
- Combine Car + Big to make a Truck.

12. Create a Bus:
- Combine Car + Big to make a Bus.

13. Create a Hot Air Balloon:
- Combine Fabric + Fire to make a Hot Air Balloon.

14. Create a Jet:
- Combine Airplane + Metal to make a Jet.

15. Create a Steam Engine:
- Combine Metal + Steam to make a Steam Engine.

16. Create a Tank:
- Combine Car + Armor to make a Tank.

17. Create a UFO:
- Combine Spaceship + Alien to make a UFO.

18. Create a Time Machine:
- Combine Clock + Machine to make a Time Machine.

19. Create a Hovercraft:
- Combine Boat + Air to make a Hovercraft.

20. Create a Segway:
- Combine Wheel + Electricity to make a Segway.

By following these combinations, you can systematically unlock advanced transportation systems in Little Alchemy 2. Remember to experiment with different elements and think creatively, as sometimes the most unexpected combinations yield the best results.