You should use both open and closed questions. When you use open questions you get you a lot of details. When you use closed questions you get anwsers with not a lot of detail. That's why both open and closed questions are useful.
Google search tips are useful if you want certain things like definition you can search define and then the word you want. You can also use the minus sign (-) to make sure that the thing you minus won't come up to click on. Another thing you can use is quotation marks (“”) around the word and it will get that exact phrase.
