Overhaoling or Overhauling: How To spell?

The word Overhaoling is misspelled against Overhauling, a noun meaning "A strict examination with a view to correction or repairs."

Word contains consecutive vowels 'AU' in between alphabets overh & ling is misspelled as 'AO'
Wrong Spelling:  overh-ao-ling 
Correct Spelling:  overh-au-ling 
Find more incorrect spellings of Overhauling to spell right way.

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