Perhaps you should try some spelling variations:
formulation optimisation » formulation optimization, reformulation optimization, simulation optimisation
developing microformats » developing microsoft, developing bioinformatics, developing microcomputer
optimisation problems » optimization problems, optimization problem
problems developing » problem developing, process developing, programs developing
microformats https » microarrays https, microformat hatom, microformats what

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• Adding a wildcard symbol may retrieve word variants: formulation optimisation problems developing microformats https*.