This allows you to search for two or more words within the same sentence and paragraph. Two or more words that are required in a document together OR must be excluded from a document Use a plus sign but DO NOT place a space between the plus sign and the second word. You can use a minus sign to search for sites that do not contain a specific word. This will yield pages that contain education, educational and so on. Good techniques for beginners to try.
Phrases are strings of words that are adjacent in a document.
They do not have to be grammatically correct, but they do need to be spelled correctly.