I'm unable to find them using Google, can anyone help?
Try Poloniex website here, which gives usd/xmr chart:
I use CoinGecko : https://www.coingecko.com/en/price_charts/monero/usd
For searches related to price, result are often better if you use "XMR" rather than "Monero".
TradingView has very nice charts.
This is the chart for Kraken.com which just enabled XMR trading:
- https://www.tradingview.com/chart/?symbol=KRAKEN:XMREUR **
**Note: Kraken specializes in EUR trading, so that chart will be more active.