Can't press three SPECIFIC keys at the same time?

[Xenpai]

Hello, my laptop's keyboard won't allow me to press specific three-key combinations at the same time. While gaming, it'll allow me to press W+S+Left arrow, but not W+S+Right arrow. This really annoys me and limits my gameplay. Is there any solution or am I going to have to end up buying an expensive gaming keyboard? Thanks in advance.

 

[Saturnity]

If I recall, all keyboards are like that. I believe left takes priority over right, and most keyboards will not let you press the right arrow key with other keys in-game