| culture |
containing the word “culture” |
| culture beaker |
containing both “culture” and “beaker |
| culture OR beaker |
containing either “culture” or “beaker” (or both) |
| 10^5 |
containing an exponenent that has “10^5” |
| culture -beaker |
containing “culture” but not “beaker” |
| "culture beaker" |
containing the exact phrase “culture beaker” |
| bea* |
containing a word that begins with “bea” |