Your search term CCL8 returns the following data from GWAS Central:
Phenotype search results:
Search term CCL8 was not recognised as a MeSH/HPO phenotype term or synonym

Gene/region search results:
61 Study Datasets reported containing markers in gene or region CCL8 (no 5′ and no 3′ flanks) with -log p ≥ 0View and refine results..
5 Markers in gene or region CCL8 with -log p ≥ 0View and refine results..
1 Text contains the keyword CCL8View and refine results..

Studies search results:
1 Study contains the keyword CCL8View and refine results..

Marker search results:
Search term CCL8 was not recognised as a marker identifier or identifiers