| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| air conditioning refrigeration books | 0.17 | 0.8 | 9100 | 91 | 36 |
| air | 0.29 | 0.5 | 1646 | 1 | 3 |
| conditioning | 0.77 | 0.4 | 7388 | 84 | 12 |
| refrigeration | 0.85 | 0.9 | 3048 | 84 | 13 |
| books | 0.11 | 0.7 | 1183 | 19 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| air conditioning refrigeration books | 1.39 | 0.4 | 756 | 49 |
| refrigeration and air conditioning book pdf | 1.52 | 0.8 | 3328 | 51 |
| refrigeration and air conditioning books | 1.54 | 0.5 | 2359 | 38 |
| air conditioning and refrigeration books pdf | 0.14 | 0.4 | 3248 | 30 |
| refrigeration air conditioning book | 0.32 | 0.3 | 9389 | 96 |
| refrigeration and air conditioning best book | 0.8 | 0.9 | 5285 | 38 |
| pdf on refrigeration and air conditioning | 1.92 | 0.7 | 1990 | 8 |
| refrigeration and air conditioning textbook | 1.65 | 0.5 | 6958 | 54 |
| refrigeration and air condition pdf | 1.61 | 1 | 2903 | 54 |
| basic refrigeration and air conditioning pdf | 1.86 | 0.8 | 2796 | 49 |
| refrigeration and air conditioning pdf notes | 0.91 | 0.8 | 7368 | 49 |
| refrigeration and air conditioning basics pdf | 1.06 | 0.3 | 3735 | 57 |
| refrigeration and air conditioning summary | 1.77 | 0.9 | 9687 | 39 |
| hvac and refrigeration systems book | 1.66 | 0.3 | 1083 | 37 |
| modern refrigeration and air conditioning pdf | 0.34 | 0.6 | 7976 | 71 |
| refrigeration air conditioning technology pdf | 0.06 | 0.8 | 3602 | 97 |
| hvac and refrigeration textbook | 1.26 | 1 | 2672 | 62 |
