Perhaps you should try some spelling variations:
"advanced modulation from computational program" » "advanced calculation from computational program" (Expand search), "advanced oxidation from computational program" (Expand search), "advanced modulation _ computational program" (Expand search), "advanced modulation and computational program" (Expand search), "advanced modulation by computational program" (Expand search), "advanced modulation of computational program" (Expand search), "advanced modulation on computational program" (Expand search), "advanced modulation pwm computational program" (Expand search)
"using computational and coding program" » "and computational and coding program" (Expand search), "using computational fluid coding program" (Expand search), "using computational and cloning program" (Expand search), "using computational and loading program" (Expand search), "using computational and cooling programs" (Expand search), "using computational and coping program" (Expand search), "using computational and cooling program" (Expand search), "using computational and cooking program" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("using computational and coding program") OR ("advanced modulation from computational program"))~.
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• Removing quotes may allow a broader search: (( using computational and coding program ) OR ( advanced modulation from computational program ))*.