Most famously he coached the Cameroon national football team when they surprisingly made the quarter-finals in the 1990 FIFA World Cup.

[4] By the end of 1983 Nepomnyashchy had returned to the Turkmenistan Sports committee until in 1984 when he was doing training courses in Moscow, he was asked by the Russian Office of football if he wanted to work abroad.

Nepomnyashchy soon accepted the offer and was expected to provide training courses and assistance to developing countries such as Algeria, Tunisia and Suriname.

[5] Initially Nepomnyashchy thought that the Russian funded aid would see him coach one of the Cameroon youth teams, however with the previous manager Claude Le Roy deciding to leave to join Senegal there was an unexpected vacancy for the senior Head coach position, which Nepomnyashchy took and signed a two-year contract with the team.

[citation needed] At first Nepomnyashchy would struggle with the French language and had to use an interpreter, however he would eventually get his message across on what he wanted his team to do and they would qualify for the 1990 FIFA World Cup.

After an uninspired time within Turkey he would move to South Korea where he had a successful spell with Bucheon Yukong where he won the 1996 Korean League Cup with them.