'Found' in the Bible

I have seen all the things that are done under the sun and have found everything to be futile, a pursuit of the wind.

When I considered all that I had accomplished and what I had labored to achieve, I found everything to be futile and a pursuit of the wind. There was nothing to be gained under the sun.

which my soul continually searches for but does not find: among a thousand people I have found one true man, but among all these I have not found a true woman.

Now a poor wise man was found in the city, and he delivered the city by his wisdom. Yet no one remembered that poor man.