Why quotation marks do not work?

[VahedCivil]

Hi This is my code

from bing_image_downloader import downloader

query_string = 'langeek dictionary definition "Go"'
downloader.download(query_string, limit=3,  output_dir='dataset', adult_filter_off=True, 
                    force_replace=False, timeout=60, verbose=True)

But the quotation marks do not work and the results with Bing isn't same.

[gurugaurav]

This lib is not supported officially so there can be some limitation in search. Let me check for it.