Perhaps you should try some spelling variations:
allan » alla, alland, alalan, allean
apland » ipland, aplandd, apaland, apleand
cppalan » cppaland, cppaalan, cppalean
lan » land, alan, lean
plan » pland, palan, plean
planets » plandets, palanets, pleanets, planetas, plants, planeta
can » cano, cana
clark » clara, claro

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((((((cppalan or allan) or cpplean) or apland) or lan) or plan) or can) or clark) or planets).~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((((cppalan OR allan) OR cpplean) OR apland) OR lan) OR plan) OR can) OR clark) OR planets).*.