Perhaps you should try some spelling variations:
"technology conventions periodicals." » "technology conditions periodicals.", "technology conversion periodicals.", "technology collections periodicals.", "technology connections periodicals.", "technology inventions periodicals.", "technology connection periodicals.", "technology conversions periodicals.", "technology competitions periodicals."
"technology convention periodicals." » "technology conversion periodicals.", "technology prevention periodicals.", "technology condition periodicals.", "technology connection periodicals.", "technology competition periodicals."

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