diff --git a/nhentai/constant.py b/nhentai/constant.py
index 11f175c..d07ff38 100644
--- a/nhentai/constant.py
+++ b/nhentai/constant.py
@@ -1,6 +1,9 @@
-SCHEMA = 'http://'
+import os
+
+SCHEMA = os.getenv('NHENTAI_SCHEMA', 'http://')
 # BASE_URL = 'nhentai.net'
-BASE_URL = 'nhentai.ricterz.me'
+BASE_URL = os.getenv('NHENTAI', 'nhentai.ricterz.me')
+
 URL = '%s%s' % (SCHEMA, BASE_URL)
 DETAIL_URL = '%s/g' % URL
 SEARCH_URL = '%s/search/' % URL
diff --git a/nhentai/parser.py b/nhentai/parser.py
index f897754..a3d4ad0 100644
--- a/nhentai/parser.py
+++ b/nhentai/parser.py
@@ -90,6 +90,9 @@ def search_parser(keyword, page):
         title = (title[:85] + '..') if len(title) > 85 else title
         id_ = re.search('/g/(\d+)/', doujinshi.a['href']).group(1)
         result.append({'id': id_, 'title': title})
+    if not result:
+        logger.warn('Not found anything of keyword {}'.format(keyword))
+
     return result