Perhaps you should try some spelling variations:
objective optimisation » objective optimization, multiobjective optimization
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
sensor algorithm » qspr algorithm, search algorithm, winner algorithm
gas sensor » gas sensors
code gas » coal gas, cold gas

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• Performing a fuzzy search may retrieve terms with similar spellings: (( modified objective optimisation algorithm ) OR ( code gas sensor algorithm ))~.
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