product vs priceRow vs taxRow

[1]: /storage/temp/7811-product-vs-price-vs-tax-2.jpg

Can someone please explain me why in hmc for the product 300389093 - Stella Dress Women blue checked L - (apparelProductCatalog - Online) , I see price ant tax in the product page but when I go to price and tax search pages I do not see results ? see attachments please