Searchable　encryption　(SE)　enables　the　searchability　of　encrypted　data　in　cloud　environments,　thereby　safeguarding　privacy.　Despite　this,　the　actual　execution　of　ciphertext　searches　within　a　multi-user　data-　sharing　context　necessitates　flexible　access　services　for　various　authorized　users.　Although　the　existing　solution　has　achieved　ciphertext　retrieval　with　multi-user　authorization,　it　still　exhibits　shortcomings　in　areas　such　as　dynamic　and　manageable　permissions　and　the　more　granular　access　control　on　results.　Our　scheme,　grounded　in　lattice　cryptography,　is　designed　to　withstand　quantum　attacks.　It　leverages　serverless　cloud　computing　and　incorporates　ciphertext-policy　attribute-based　encryption　(CP-ABE)　along　with　proxy　re-　encryption　(PRE)　to　construct　a　multi-user　authorization　searchable　encryption　system.　This　system　facilitates　keyword　searches　on　encrypted　data,　supports　dynamic　multi-user　authorization,　and　ensures　scalable,　results-　on-demand　capabilities.　Security　analysis　confirms　that　our　scheme　is　impervious　to　collusion　attacks,　chosen　keyword　attacks　(CKA),　and　chosen　plaintext　attacks　(CPA).　Finally,　the　performance　analysis　demonstrates　that　our　scheme　is　both　secure　and　efficient,　outperforming　other　multi-user　searchable　encryption　schemes　in　terms　of　security　and　efficiency.