setSearchTerm example

$page = SuggestPage::createFrom($page);

        $criteria = new Criteria();
        $criteria->setLimit(10);
        $criteria->setTotalCountMode(Criteria::TOTAL_COUNT_MODE_EXACT);
        $page->setSearchResult(
            $this->productSuggestRoute
                ->load($request, $salesChannelContext, $criteria)
                ->getListingResult()
        );

        $page->setSearchTerm((string) $request->query->get('search'));

        $this->eventDispatcher->dispatch(
            new SuggestPageLoadedEvent($page, $salesChannelContext, $request)
        );

        return $page;
    }
}

        $criteria = new Criteria();
        $criteria->setTitle('search-page');

        $result = $this->productSearchRoute
            ->load($request, $salesChannelContext, $criteria)
            ->getListingResult();

        $page->setListing($result);

        $page->setSearchTerm(
            (string) $request->query->get('search')
        );

        $this->eventDispatcher->dispatch(
            new SearchPageLoadedEvent($page, $salesChannelContext, $request)
        );

        return $page;
    }
}