However, Singapore will now have to defeat Indonesia on Thursday in order to book their spot in the last four.
"I think we are happy to get the win tonight," Aide told reporters after the match. "I think the performance wasn’t the best compared to the last game against Myanmar.
"But, a win is a win. We’ll take these three points and I’m proud of the boys that they dug deep to get the three points and hopefully, this win will give us a good moral booster for the next game against Indonesia."
Aide was also relieved that striker Sahil Suhaimi ended his goal drought by scoring in the 90th minute against Cambodia. Midfielder Safirul Sulaiman scored the first goal in the dying minutes of the first half, while Muhammad Faris Ramli doubled Singapore's lead just seconds later.
Prior to the match against Cambodia, there were mounting calls for Suhaimi to be dropped, especially after he wasted numerous opportunities to score during Singapore's 2-1 loss to Myanmar on Thursday.
"It was also a big relief for Faris and Sahil," Aide said. "I mean, for them, they’ve gotten a lot of criticism for the last two games and I told them that they just have to positive.
"In fact, before the game, I told Sahil that he would score tonight, he just had to be patient and true enough, he got the chance and he scored. So, I’m happy for both of them and I think from now on, Faris and Sahil, you’ll see more of them in the next game."