wlan0 cannot find any wifi

[rpf5573]

Background
I connected MacBook Pro with Raspberrypi3 B+ by LAN and SSH because I have no keyboard and monitor for PI3.

ssh pi@192.168.2.3

OS : raspbian-stretch-lite

Model : Raspberry Pi3 B+

pi@raspberrypi:~ $ iwconfig
wlan0     IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=31 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on

lo        no wireless extensions.

eth0      no wireless extensions.

Problem
There are many Access Points but No scan results

sudo iwlist wlan0 scan
wlan0     No scan results

What should I do?

[KN4THX]

@rpf5573 Did you try changing localisation options in sudo raspi-config?