| how human trafficking happens | 1.97 | 0.9 | 642 | 29 | 94 |
| how does human trafficking happen | 0.11 | 0.4 | 2358 | 33 | 53 |
| what happens to human trafficking victims | 1.78 | 0.4 | 713 | 41 | 73 |
| why human trafficking happens | 1.72 | 0.8 | 566 | 29 | 74 |
| how often does human trafficking happen | 1.84 | 0.8 | 7197 | 39 | 98 |
| what happens in human trafficking | 1.95 | 0.1 | 5804 | 33 | 17 |
| how does human trafficking happen in the us | 1.28 | 0.4 | 4937 | 43 | 67 |
| why does human trafficking happen | 1.35 | 0.8 | 5931 | 33 | 8 |
| where does human trafficking happen | 0.68 | 0.9 | 7909 | 35 | 72 |
| why is human trafficking happening | 1.77 | 1 | 4342 | 34 | 11 |
| where is human trafficking happening | 0.23 | 0.3 | 6063 | 36 | 2 |
| why does human trafficking still happen today | 0.87 | 0.1 | 6529 | 45 | 51 |
