| Keyword | CPC | PCC | Volume | Length string | Score |
|---|---|---|---|---|---|
| zhanqing li umd | 0.54 | 0.9 | 1221 | 15 | 38 |
| zhanqing li university of maryland | 0.82 | 0.6 | 4097 | 34 | 56 |
| zhongchi liu university of maryland | 0.2 | 0.6 | 5318 | 35 | 61 |
| xin-zhong liang university of maryland | 1.41 | 0.4 | 4331 | 38 | 88 |
| zhang li chinese university of hong kong | 0.97 | 0.8 | 8834 | 40 | 86 |
| zhang xin university of maryland | 1.88 | 0.5 | 9201 | 32 | 90 |
| zhuqing li brown university | 1.97 | 0.3 | 1084 | 27 | 13 |
