No ordering online here - too risky. You'd ask for 2 kgs of green peppers and end up with red & green ones. No cilantro, so you'd get parsley instead. Fresh vegetables, however, are easy to find in the multiple farmer's markets and supermarkets around the city.
Ordering from restaurants online, however, is ok. Takes a while longer, but yes, it works because all the delivery guys drive motor bikes.
About 8-9 miles from my house (I live just on the edge of the city) I can find wonderful oriental ingredients, in the Chinese market; all the spices I need at the Syrian spice store; any Lebanese ingredients, thanks to "El Arabito". Meat is always available because Venezuelans are huge meat eaters.
Curiously enough, you can't find real, proper, Mexican corn tortillas; only those tasteless flour tortillas mass-produced by Holsum, or Bimbo - the largest plastic bread producers in the country. Having said that, I found an authentic tortilla producer today on Instagram, so may have to try it out.