Can not translate some words in portuguese language

Hello,
I have wordpress website in portuguese language, unfortunatelly some words in blog have not translated automatically.
In plugin – “Read More”
In Blog – “Categories”, “Share on” …

What is done:
– Tryed to translate with Polylang, it translated but not everything – uninstall
– Tryed to translate with loco Translate and found some words with missing translation, but strange, some words already have been translated but in frontend is still in english
– add lang folder in enfold-child and add code in functions.php:

function overwrite_language_file_child_theme() {
$lang = get_stylesheet_directory().’/lang’;
return $lang;
}
add_filter(‘ava_theme_textdomain_path’, ‘overwrite_language_file_child_theme’);

Still no changes …

– Check .po files with Notepad and all translation is there … do not appeared in frontend
– Tryed to use Poeditor, in case loco translate failed, but it is limited to 1000 words … my file is too big
– Found another generator from .po to .mo files and upload by ftp … no changes

Please, can you help me translate?

Thank you very much,
Best Regards,
Daria.