Thanks for your clarification. mentioned looking at the last paragraph (bold) where Yoast SEO isn’t detecting the keyphrase. We see that you’re referring to the following paragraph that appears in the last parts of the screenshot you provided.
Pastikan anak ayam dalam keadaan hangat sehingga lebih mudah untuk beradaptasi dengan lingkungan. Ayam jago akan tumbuh secara sehat apabila menggunakan teknik merawat ini.
We understand that Yoast SEO isn’t detecting the focus keyphrase teknik merawat ayam jago
from the relevant paragraph even though it has all the four words from the focus keyphrase but you expect Yoast SEO to detect the focus keyphrase from the relevant paragraph.
We have tested the expected behavior on our end using the English language and can confirm the plugin does exactly what you are expecting but in Indonesian, it doesn’t. So, based on all the information you provided and all the investigation we have done so far, we think this is a bug. We appreciate you for bringing this to our attention. If you have a moment to spare with us, please do feel free to submit a proper bug report directly at our GitHub development repository so our development team can investigate the issue further and release a fix in a future version of our plugin. In this way, you’ll get the notification for the progress of the relevant bug report.
We hope this helps!