The spelling "very muches" is not a standard one in English. Based on the International Phonetic Alphabet (IPA), we can see that "very" is spelled /ˈvɛri/ and "much" is spelled /mʌtʃ/. There is no variation of the spelling that could result in "verymuches" or "very muches" as a compound word. However, in dialects such as Cockney or African American Vernacular English, it is common to add "es" to words for emphasis or to show plurality, which could explain the use of this spelling in certain contexts.