| unexplained reason | 2.70 | Bacher did not turn up for unexplained reasons. | ||
| unexplained death | 1.91 | The unexplained death of a local shepherd. | ||
| unexplained explosion | 1.25 | On both days, Pale was rocked by unexplained explosions. | ||
| unexplained illness | 0.99 | It also asked doctors to report unexplained illnesses after such surgeries. | ||
| unexplained phenomenon | 0.92 | Unexplained phenomena. | ||
| unexplained bombing | 0.66 | There has been a series of unexplained deadly bombings around Indonesia in the past year. | ||
| unexplained absence | 0.59 | Three unexplained absences result in expulsion. | ||
| unexplained delay | 0.59 | It began in the late morning after an unexplained delay. | ||
| unexplained problem | 0.53 | But because of unexplained technical problems, the transmitter was silent at nightfall. | ||
| unexplained wealth | 0.53 | Critics say he acquired the mansions with unexplained wealth. | ||
| unexplained circumstance | 0.39 | Earlier this month, two other opposition party figures were killed in yet unexplained circumstances. | ||
| unexplained disappearance | 0.39 | Most concerned murders or unexplained disappearances. | ||
| unexplained increase | 0.39 | He said there had been a recent unexplained increase in such cases on eastern Long Island. | ||
| unexplained symptom | 0.39 | For these patients there was no doubt about the diagnosis or unexplained symptoms. | ||
| unexplained bomb | 0.33 | A series of unexplained bombs have also hit the country. | ||
| unexplained drop | 0.33 | There has been a similar unexplained drop in Medicaid rolls. | ||
| unexplained fire | 0.33 | But Mafia car bombs and unexplained fires have done the most spectacular damage. | ||
| unexplained helicopter | 0.33 | Unexplained black helicopters. | ||
| unexplained troop | 0.33 | Nevertheless the army has been closely monitoring a series of unexplained Syrian troop movements in recent weeks. | ||
| unexplained anaemia | 0.26 | Fourteen patients gave histories of unexplained anaemia. |