Perhaps you should try some spelling variations:
"endoscopic further applications" » "endoscopic forehead applications", "endoscopic future applications"
"endoscopic other applications" » "endoscopic computer applications", "endoscopic open applications", "endoscopic therapy applications", "endoscopic thermal applications"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"endoscopic further applications\") OR (\"endoscopic other applications\"))".
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