Perhaps you should try some spelling variations:
"path integral formulation" » "path lineal formulacion", "parte integral formulation", "la integral formulation"
"et integral formulation" » "et lineal formulacion", "e integral formulation", "_ integral formulation", "de integral formulation"
"de integrales formulation" » "e integrales formulation", "de interes formulation", "de intereses formulation"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("path integral formulation") OR ((("et integral formulation") OR ("de integrales formulation"))))~.
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