Add spaces: AfterheretiredfromhispositioninBrazilandreturnedtotheUnitedStateshepublishedThecalculusofvariationsandTheLaplacetransformation,bothin1962.

Answer: After he retired from his position in Brazil and returned to the United States he published The calculus of variations and The Laplace transformation , both in 1962.

Add spaces: Thebestwaytotearhymen

Answer: The best way to tear hymen

Add spaces: ASMstervang-1or2rowsheavydutyplantingmachines

Answer:
ASM stervang - 1 or 2 rows heavy duty planting machines