Visaong or Visaing: How To spell?

The word Visaong is misspelled against Visaing, which is present continuous of "Visa"

Word contains consecutive vowels 'AI' in between alphabets vis & ng is misspelled as 'AO'
Wrong Spelling:  vis-ao-ng 
Correct Spelling:  vis-ai-ng 
Find more incorrect spellings of Visaing to spell right way.

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