Inconsistent Autocomplete

Inconsistent Autocomplete

Throughout my Zoho Sheet document, it seems that most of the cells will not autocomplete. If I enter information in a cell and want to add that same information to information in a cell below it, most times I will have to type the entire string of words again. Very few of the cells will autocomplete what I begin typing. Is there something I should look for that will maintain autocomplete for an entire column?