Efallai y cewch fwy o ganlyniadau drwy addasu'ch ymholiad chwilio.

• Gallai tynnu'r dyfynodau ganiatáu chwiliad ehangach: declaration of the united nations conference on the built environment.

Efallai y dylech gynnig rhai amrywiadau sillafu:
"declaration of the united nations conference on the built environment" » "declaration of the united national conference on the built environment" (Ehangu'r Chwiliad), "declaration of the united nations conference on the built environmental" (Ehangu'r Chwiliad)