| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the book of unsolved mysteries | 1.05 | 0.7 | 4875 | 52 |
| the book of unsolved mysteries pdf | 0.03 | 0.7 | 7029 | 57 |
| brent88 unsolved mysteries book | 1.73 | 0.6 | 9899 | 82 |
| history's unsolved mysteries book | 1.3 | 0.3 | 3824 | 96 |
| big book of unsolved mysteries | 1.37 | 0.1 | 8528 | 88 |
| unsolved mysteries book series | 1.74 | 0.9 | 4291 | 28 |
| unsolved mysteries of the past pdf | 1.97 | 0.8 | 3980 | 22 |
