It seems the keyword you provided — "slslh-alhzmy-altalymyh-alymn-pdf-awl-thanwy" — appears to be a transliteration of Arabic words into Latin script, likely spelled phonetically or with common typing variations.
Many teachers share scanned belts in subject-specific Telegram groups. Search for: سلسلة الأحزمة التعليمية أول ثانوي PDF . slslh-alhzmy-altalymyh-alymn-pdf-awl-thanwy
Try belt level 1 (basic) of a subject. If you get <70%, review your textbook first. slslh-alhzmy-altalymyh-alymn-pdf-awl-thanwy
A possible reading is: Or in Arabic: "سلسلة الحازمية التعليمية اليمنية PDF أول ثانوي" slslh-alhzmy-altalymyh-alymn-pdf-awl-thanwy