While translating the Article Good Search extension I found some unavailable language strings in the backend.
1) 'Search results' of the Result phrase placeholder could not find the string in the en-GB file
2) 'No results found' of the Phrase if no results placeholder is not in en-GB file
3) Could not find the language strings for the following buttons:
'First ' and 'Only' for the Include Featured
'Default', 'Intro image' and 'First image from test' of the Image type
Found 2 more in the gsearch_blog_item php file: 'Created' and 'Hits' are hardcoded (do not have language strings).
Found 2 more in the gsearch_blog_item_clean php file: same as above 'Created' and 'Hits'