diff --git a/rsshub/spiders/aisixiang/search.py b/rsshub/spiders/aisixiang/search.py
index d392519..3093f59 100644
--- a/rsshub/spiders/aisixiang/search.py
+++ b/rsshub/spiders/aisixiang/search.py
@@ -1,4 +1,4 @@
-import urllib.parse
+from urllib.parse import quote, unquote
 from rsshub.utils import fetch, DEFAULT_HEADERS
 
 
@@ -14,8 +14,9 @@ def parse(post):
 
 
 def ctx(category='', keywords=''):
-    keywords_encode = urllib.parse.quote(keywords, encoding='gbk')
-    url = f"{domain}/data/search.php?keyWords={keywords_encode}&searchfield={category}"
+    keywords = unquote(keywords,encoding='utf-8')
+    keywords_gbk = quote(keywords, encoding='gbk')
+    url = f"{domain}/data/search.php?keyWords={keywords_gbk}&searchfield={category}"
     tree = fetch(url, headers=DEFAULT_HEADERS)
     posts = tree.css('.search_list').css('li')
     return {
diff --git a/rsshub/spiders/economist/worldbrief.py b/rsshub/spiders/economist/worldbrief.py
index 5584ecc..d1803a8 100644
--- a/rsshub/spiders/economist/worldbrief.py
+++ b/rsshub/spiders/economist/worldbrief.py
@@ -6,9 +6,9 @@ domain = 'https://www.economist.com'
 
 def parse(post):
     item = {}
-    item['title'] = post.css('div.e18qdnq10').get()
-    item['title'] = re.sub(r'<[^>]*>', '', item['title']).strip()
+    item['title'] = post.css('div').css('p').get()
     item['description'] = item['title'] 
+    item['title'] = re.sub(r'<[^>]*>', '', item['title']).strip()
     item['link'] =  f"{domain}/the-world-in-brief" + '?from=' + item['title'][:30] 
     return item