<p>The rapid growth of cloud computing encourages healthcare providers to outsource electronic health records (EHR) for more efficient storage and sharing. Recent ciphertext policy attribute-based keyword search (CP-ABKS) innovative approaches provide fine-grained access control and efficient keyword search retrieval. However, existing CP-ABKS schemes rely on single attribute authority, which results in single-point failure attacks in distributed cloud systems. The CP-ABKS schemes make it complicated to establish a trusted platform for secret key distribution, which increases the computational storage demand of outsourced data in the cloud system. To address the aforementioned limitations in this paper, we design a TMABKS scheme that supports multi-authority anonymous secret key mechanisms utilizing oblivious transferer protocol (OTP). Through this approach, our scheme guarantees that secret keys are distributed securely without leaking attribute information affording robust security against corrupt attribute authorities and malicious users. The design scheme achieved efficient attribute-based Boolean keyword search authorization ensuring secure data retrieval with minimal computational computation and storage demand. Moreover, our design scheme ensures traceability, facilitating instant dynamic updates and revocation of malicious user attributes reinforcing security and integrity. Experimental results demonstrate the performance efficiency in terms of computation and storage overheads compared to existing schemes. The formal security endures comprehensive security against selectively chosen keywords and ciphertext attacks improves scheme efficiency and practicability.</p>