Not enough data
We couldn't find much for "did gdp increase or decrease in the second quarter of 2018 by how much did it increase or decrease".
Google doesn't have enough autocomplete data on this phrase — probably means people aren't searching for it in this exact form yet. Try a product, place, or topic people actually look up.
This isn't an error — autocomplete reflects what real people type. If a query is brand new, very niche, or gibberish, search engines don't suggest it. That's honest data, not a bug.