| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| scientific research search engines | 1.47 | 0.1 | 9236 | 28 | 34 |
| scientific | 1.73 | 0.9 | 6616 | 54 | 10 |
| research | 0.51 | 0.5 | 7377 | 96 | 8 |
| search | 0.26 | 0.5 | 6231 | 35 | 6 |
| engines | 1.05 | 0.4 | 59 | 35 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| scientific research search engines | 1.59 | 0.2 | 2559 | 50 |
| best search engine for scientific research | 0.84 | 0.7 | 873 | 83 |
| search engine for scientific research | 0.35 | 0.3 | 2176 | 52 |
| search engines for scientific articles | 1.82 | 0.9 | 3162 | 37 |
| search engines for research | 0.89 | 0.5 | 9461 | 100 |
| search engines for research articles | 1.8 | 0.5 | 556 | 24 |
| search engines for science | 1.02 | 0.5 | 6543 | 85 |
| free research search engines | 1.87 | 0.8 | 4507 | 98 |
| list of search engines for research | 0.11 | 0.5 | 4279 | 39 |
| search engines for scientific literature | 1.56 | 0.5 | 5121 | 27 |
| research based search engines | 0.73 | 0.5 | 6039 | 51 |
| scientific articles search engine | 0.02 | 0.8 | 3029 | 19 |
| search engines for research projects | 1.12 | 0.8 | 4723 | 14 |
| search engine for research studies | 1.45 | 0.9 | 5820 | 21 |
| scientific publication search engine | 0.54 | 0.4 | 3979 | 86 |
| scientific paper search engine | 1.68 | 0.1 | 3586 | 8 |
| search engine for scientific papers | 0.25 | 0.1 | 7699 | 46 |
| research study search engine | 1.08 | 0.8 | 4276 | 58 |
