Sometimes, long manga titles are used to convey complex or unique concepts. They might try to capture the essence and uniqueness of the story in the title itself to draw in specific audiences.
Well, first, plan out the title structure in your mind. Then, start typing slowly to avoid mistakes. It can be helpful to type one part at a time and double-check before moving on. Another tip is to use auto-correct and predictive text features if available.
It could be because the creators want to convey a complex or elaborate concept. Also, a long title might help distinguish it from other similar works and stand out in the market.
Sometimes, long titles in light novels are used to stand out among a sea of other titles. They might include specific elements or themes to pique the interest of a particular audience.