Power BI - FILTER in DAX measure not working properly

[FaizanKhan]

I am using Filter in Power BI to filter all rows of table containg a word in specific column. When i use hardcoded string "elements" as in example below, the Filter works fine. 

FilteredTabel = FILTER(
FeedbackNouns,FIND(
"elements",'FeedbackNouns'[FeedbackTokens],,0)
>0)

But when i replace the string with the measure, it does not works. Below is the code i am using.
FilteredTabel = FILTER(
FeedbackNouns,FIND(
[selected word],'FeedbackNouns'[FeedbackTokens],,0)
>0)

What am i doing wrong ? As the resulted table in both cases should be same, because string and [selected word] are same. (Yes, i have verified that [selected word] conatains the same string).

[FaizanKhan]

I am using Filter in Power BI to filter all rows of table containing a word in specific column. When i use hard coded string "elements" as in example below, the Filter works fine.

FilteredTabel = FILTER(
FeedbackNouns,FIND(
"elements",'FeedbackNouns'[FeedbackTokens],,0)
>0)

But when i replace the string with the measure, it does not work in the same way. Below is the code i am using.

FilteredTabel = FILTER(
FeedbackNouns,FIND(
[selected word],'FeedbackNouns'[FeedbackTokens],,0)
>0)

What am i doing wrong ? As the resulted table in both cases should be same, because string and [selected word] are same. (Yes, i have verified that [selected word] contains the same string).