I think Boolean syntax seems hard partially because many people still try to use English to talk with search engines, while software only understands the exact syntax it is programmed to understand.

As an example, whether a particular operator works or not on Google is not a matter of someone’s experience or opinion, it is either true or false, such as whether 3+5 equals 8 or not. We wish Google would warn us about syntax mistakes but it doesn’t! If you are in doubt about an operator- or about any syntax rule –  run sample searches and test its validity... continue reading and check out examples.