Scraping li:nth-of-type doesn't work

Hello,

I am currently trying to scrape product pages of this type: Böker Plus Strike Spearpoint | Böker Solingen

I need the product information in the right column, such as Gesamtlänge, Klingenlänge, Klingenstärke. The problem is that the respective value is elsewhere in this column on other item pages, sometimes as third, sometimes as fifth and so on. How can I tell WebScraper to scrape the value only if the variable in the left column matches? Otherwise a null should be written so that in Excel the columns match.

So something like:
if left = Gesamtlänge then scrape otherwise null
just in WebScraper language

Thank you very much in advance!

EDIT: solved, just used li:contains....