With regard to what is mentioned in the question, quoting from al-Masaahif by Ibn Abi Dawood, there follows the report concerning that and the ruling thereon:
It was narrated from ‘Abbaad ibn Suhayb from ‘Awf ibn Abi Jameelah that al-Hajjaaj ibn Yoosuf changed eleven letters in the Mus-haf. He said that in Soorat al-Baqarah 2:259 it said lam yatasanna wa’nzur, with no ha’, and he changed it to lam yatasannah wa’nzur (they show no change, and look…)
In al-Maa'idah 5:48 it said sharee’atan wa minhaajan, and he changed it to shir’atan wa minhaajan (a law and a clear way)
In Yoonus 10:22 it said, Huwa alladhi yunshirukum and he changed it to Huwa alladhi yusayyirukum (He it is Who enables you to travel…)
In Yoosuf 12:45 it said Ana aateekum bi ta’weelihi and he changed it to Ana unabbi’ukum bi ta’weelihi (I will tell you its interpretation)
In al-Zukhruf 43:32 it said, Nahnu qasamnaa baynahum ma’aayishahum and he changed it to Nahnu qasamnaa baynahum ma’eeshatahum (It is We Who portion out between them their livelihood)
In al-Takweer 81:24 it said Wa ma huwa ‘ala’l-ghaybi bi zaneen and he changed it to Wa ma huwa ‘ala’l-ghaybi bi daneen (and he withholds not a knowledge of the unseen)
Kitaab al-Masaahif by al-Sajistaani, p. 49.
This report is da’eef jiddan (very weak) or mawdoo’ (fabricated), because its isnaad includes ‘Abbaad ibn Suhayb, whose hadeeth is to be rejected.
‘Ali ibn al-Madeeni said: his hadeeth is no good. Al-Bukhaari, al-Nasaa’i and others said: he is matrook (to be rejected). Ibn Hibbaan said: he was a Qadari who promoted his innovated ideas, and he narrated things which a beginner in this field would realize were fabricated if he heard them. Al-Dhahabi said: he is one of those who are to be rejected.
See Meezaan al-I’tidaal, by al-Dhahabi, 4/28. (Source)