Findings:

• sphinxs (user)
• White Lined Sphinx
• sphinxx (user)
• Sphinx
• Sphinx moth
• The Sphinx
• Theban
• Jackdaws love my big sphinx of quartz
• Riddle of the Sphinx
• The Theban Cycle
• sphinx (user)
• Lady Sphinx (user)
• Wild Cherry sphinx

If you Log in you could create a "Theban Sphinx" node. If you don't already have an account, you can register here.