Perhaps you should try some spelling variations:
segmentation techniques » augmentation techniques, imputation techniques
truncation technique » floatation technique, inhalation technique, reduction technique
sensor segmentation » series segmentation, semantic segmentation
based anode » based code
gas sensor » gas sensors

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• Performing a fuzzy search may retrieve terms with similar spellings: (( learning-gas sensor segmentation techniques ) or ( learning-based anode truncation technique ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-gas sensor segmentation techniques ) OR ( learning-based anode truncation technique )).
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