How do I extract a substring in a cell array of strings?

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Abdullah Hamidi
Abdullah Hamidi 2019-3-4
评论： Abdullah Hamidi 2019-3-4
I have loaded up a catalog of satellite and space debris entries on MATLAB and I am trying to extract everything that is debris.
As you can see in the attachment (column 4), I am trying to run a for loop to look for strings that contain the word 'deb' (and other corresponding fields) and save them separately. But I am just not getting anywhere. Any help would be hugely appreciated.

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KSSV
KSSV 2019-3-4
[num,txt,raw] = xlsread(myfile) ;
C4 = txt(:,4) ;
idx = contains(C4,'DEB')
Note that for better help, you should attach your file not an image snippet.
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KSSV
KSSV 2019-3-4
Ohhh....simple:
[num,txt,raw] = xlsread(myfile) ;
C4 = txt(:,4) ;
idx = contains(C4,'DEB')
iwant = txt(idx,:)

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