The national team of Vietnam started to witness significant changes under the tenure of Toshiya Miura, who took charge of Vietnam from 2014 to 2016. The Japanese coach was accredited for rebuilding the national team of Vietnam after the failed 2015 AFC Asian Cup qualification, and had a significant impact on the improvement of the team's performances. One of the most renowned achievement under Miura's era was with the youth team, when the Olympic side managed to cruise pass Olympic Iran, a major Asian force, at the 2014 Asian Games with an unthinkable 4–1 victory. Many of these young players nurtured by coach Miura would be brought to senior side, where the team managed a fine performance in 2014 AFF Championship, but Vietnam failed to progress beyond the semi-finals after suffering a shock 2–4 defeat to Malaysia right at home, in spite of winning 2–1 away before. Vietnamese police had sought to investigate this match, but found no evidence of rigged bribery or corruption as also stated in the findings of Swiss-based international supplier betting services Sportradar.