Chrome Version: 55.0.2883.91
OS: Android

What steps will reproduce the problem?
(1) On my desktop, I hit ctrl+h to get to history and look at the synced tabs from my phone.
(2) There are only 3 showing, despite there being 33 on my phone, many of them quite long-lived.
(3) When I go to my phone and click on a tab, it reloads [it had undoubtedly been flushed due to age and resource constraints] and then it shows up in the synced history.
I also just upgraded Chrome to the latest version to see if it helped [the version shown above] and it made no difference.

What is the expected result?

I expect to see all my phone tabs listed on my desktop.  I often leave them around for a long time until I can view them on a bigger screen, or with better audio, etc.  Being able to grab them from one device to the other is the whole point of sync, for me.  If I have to get my phone out, click on a tab, then put it away and click again on the desktop, it's a pain.  Worse, what if it's not my phone, but a tablet I don't have handy?  Then I can't get to the tabs at all.

What happens instead?

I see only a few of the tabs; perhaps they're the most recently visited?