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Please help, I have two ways to search, one time works, one time another. I would like to combine these methods to increase the number of items that could be found. What formula to do this? I assume you will need to add an additional column that will combine both search results.

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Any help will be rewarding. Cells marked in yellow equal to Nan

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Wojciech Moszczyński
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  • if by search you mean is subset, you can do it by 'df[(conditionA) | (conditionB)]'. In this case should be 'df[df['Populacja'].isna() | df['Populacja2'].isna()]' – d_frEak Apr 13 '22 at 05:09

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this links will help you dropna isna

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