This is the 16114th most frequent Russian word.
различной
"Различной" means "different" or "various" in English.
The word 'различной' is used as an attribute describing 'тематики', indicating variety or diversity.
У нас есть книги различной тематики.
We have books of various themes.
Here, 'различной' is used to qualify 'кухни', showing diversity in types of cuisines.
Она пробовала блюда различной кухни.
She tried dishes of various cuisines.
In this case, 'различной' modifies 'сложности', highlighting differing levels of complexity.