My guess is that the suggested search is a common or trending search term. Then in most languages they apply a naughty-word list filter, but in other languages perhaps their filter is non-existent or in-exhaustive.
For the record, the ones that I noticed a few weeks ago on the English site were "human hair wigs" and "dildo". Could be that they don't blacklist at all, or that they have a fun test data set that was accidentally pushed to prod.