Perhaps you should try some spelling variations:
"sciences mathematics computer programa." » "science mathematics computer programa.", "sequences mathematics computer programa.", "science mathematical computer programa.", "sciences mathematics computer programs.", "sciences mathematics computer program.", "sciences mathematics computer programming."
"basicas matematica control programming." » "basicas matematicas control programming.", "fisica matematica control programming.", "comicas matematicas control programming.", "basicas matematica general programming.", "basicas matematica como programming."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("sciences mathematics computer programa.") or ("basicas matematica control programming."))~.
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• Removing quotes may allow a broader search: (( sciences mathematics computer programa. ) or ( basicas matematica control programming. )).
• Adding a wildcard symbol may retrieve word variants: (("sciences mathematics computer programa.") or ("basicas matematica control programming."))*.