Definition of single-rooted words in search, inside the site

Igor
Employer

[no-member:pro]Igor[/no-member:pro]Igor

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Project parameters
Type of cooperationPeriodic employment
Prepaymentprepayment is possible
Payment methodsBank transfer
Acceptance of requestsclosed
Project description
Hey, everybody!
You need to prescribe a script that can identify single-root words for the Nth word in the search text, inside the site. And give us the results,
For example, when you enter the search word "chicken" the program gives the results "chicken breast", "chicken liver", "chicken roll", "chicken fillet", "chicken fillet".
Platform and programming language, then Yii2, php
Project author: Igor