chaya hcaya cahya achya hacya ahcya chyaa hcyaa cyhaa ychaa hycaa yhcaa cayha acyha cyaha ycaha aycha yacha hayca ahyca hyaca yhaca ayhca yahca chaay hcaay cahay achay hacay ahcay chaay hcaay cahay achay hacay ahcay caahy acahy caahy acahy aachy aachy haacy ahacy haacy ahacy aahcy aahcy chyaa hcyaa cyhaa ychaa hycaa yhcaa chaya hcaya cahya achya hacya ahcya cyaha ycaha cayha acyha yacha aycha hyaca yhaca hayca ahyca yahca ayhca cayah acyah cyaah ycaah aycah yacah caayh acayh caayh acayh aacyh aacyh cyaah ycaah cayah acyah yacah aycah ayach yaach aaych aaych yaach ayach hayac ahyac hyaac yhaac ayhac yahac haayc ahayc haayc ahayc aahyc aahyc hyaac yhaac hayac ahyac yahac ayhac ayahc yaahc aayhc aayhc yaahc ayahc
Note: these 'words' (valid or invalid) are all the permutations of the word chaya. These words are obtained by scrambling the letters in chaya.