Perform a similarity, substructure or exact search on chemical sample data

searchMethod can be either: * similarity: structure similarity based on the Tanimoto algorithm * substructure: whether the substructure query is present in the target structure * exact: exact structure match

Example values:
* searchMethod: similarity
* query: CC(C)CC(=O)
* searchType: smiles
* searchArchive: false
* reactionTableSearch: false
* resultSetNumber: 0
* threshold: 85