Looking on the internet deeply has found these results:

and/or is the most popular phrase on the web.

or/and 124,000,000 results on the web	and/or 1773,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Greece is heading towards disorderly default and/or devaluation with incalculable consequences. existing hypercalcemia and/or hypercalciuria Preotact has been studied in patients with pre OTE cannot therefore increase salaries based on employee productivity and/or achievements. existing hypercalcemia and/or hypercalciuria. Portuguese and/or Arabic would be an asset. Uncommon: aminotransferase elevations associated with hepatitis and/or jaundice. Specify cow category: dairy and/or beef. Patients with pre

or/and

124,000,000 results on the web

and/or

1773,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Greece is heading towards disorderly default and/or devaluation with incalculable consequences.
existing hypercalcemia and/or hypercalciuria Preotact has been studied in patients with pre
OTE cannot therefore increase salaries based on employee productivity and/or achievements.
existing hypercalcemia and/or hypercalciuria.
Portuguese and/or Arabic would be an asset.
Uncommon: aminotransferase elevations associated with hepatitis and/or jaundice.
Specify cow category: dairy and/or beef.
Patients with pre