Chickens like a secure nesting area, and often, areas underneath things like bushes can look appealing. Get down on a chicken's level and look around. You may find some eggs! You may also find them at the base of trees or nestled down in the grass. If you have places in your yard like a barn or a shed that have openings for your hens to get in, check in there for eggs. Your hen may decide a hayloft or a manger is a great place to lay, especially since it's out of the elements! Make sure to look in all the hidden holes you can find in these buildings! Hens aren't particularly rational about where they lay their eggs. While they typically pick a shaded area for protection, yours might decide to lay on top of a freezer or in a tractor seat. It really depends on the chicken! So make sure to search the area from all angles, as you never know where you'll find eggs.  Some may even lay eggs in the middle of the yard. If you have kids, get them to help you look! They can spot things down low you might not see. Chickens often like to lay eggs next to a barrier or in a corner, so check your fence line for hidden nests. You may find one in a far back corner, for instance. The same is true around your house. Walk around the outside of your house to see if your chickens have laid eggs around the border. Have a good look inside your chicken coop, including the run and under the housing, as your chickens may have laid their eggs in the coop but not in the nesting area. You may find them in corners, in the roosting area, or even in the middle of the floor.

Summary:
Look under bushes and logs. Check in warm, semi-indoor areas. Search high and low in places you might not expect. Walk along the fence line. Make sure the eggs aren't in the coop.