"rich variations" is a correct and usable phrase in written English.
You can use this phrase to refer to a wide range of different options or possibilities within something. For example: "The recipe for this dish offers a range of rich variations to choose from."
"District and Circle" plays rich variations on old themes.
The new data already are altering scientific understanding of what human DNA looks like, experts said, adding rich variations to our map of the genome.
A duo episode for guitars and vibes explored Metheny's rich variations on acoustic instruments, including the tonally spacious 42-string guitar.
It aptly conveys the buzz of a summer night, as the lovely "Raga for a June Evening" (1974), in rich variations and overlays of green, blue and brown with touches of yellow and lavender, evokes the murmur of a forest.
In her excellent introduction to this edition, the novelist Jamie Gordon writes: "At rhythmic intervals — in this respect as much like music as collage — the novel revisits the theme of the narrator's own relations with light, in brief, image rich variations throughout the text, each floating in its own shining white space".
This Review surveys both conserved features and rich variations of condensin-based chromosome organization and discusses their evolutionary implications.
As the beam of a continuous system has infinite eigenvalues and these eigenvalues are influenced differently by a brace, the eigenvalues show rich variation patterns.
One of the major strengths of the orthogonal frequency-division multiplexing (OFDM) modulation format is its rich variation and ease of adaption to a wide range of applications.
To allow for a rich variation in the combinations of attribute levels to be evaluated as service packages in the SP experiment, each bus operator received 8 sets of 27 different survey forms (i.e., 216 forms) and instructions on how to organise the survey.
While these dimensions show good consistency across our studies and are supported by the literature in the field, the quantitative and qualitative methods used also uncovered a rich variation in how the dimensions are construed by different stakeholder groups and along different reaches of the corridor.
The interviewed adolescents' characteristics showed a rich variation (Table 1) and thus contributed to a richer variation of the experience of being food-hypersensitive [ 19].
