get https://api.spyfu.com/apis/keyword_api/v2/related/getKeywordExpansions
Performs 5 types of keyword research via keywordSearchType parameter: PhraseMatch (thematic similarities), Questions (interrogative queries), AlsoBuysAdsFor (co-targeted PPC terms), AlsoRanksFor (co-ranking SEO terms), Transactions (commercial intent). Set keywordSearchType to select method.