| 摘要 |
<p>Information about a search object useful in transactions can be provided to a user even when the user specified a plurality of keywords as the search conditions. A search device divides the plurality of keywords specified as the search conditions into two child search conditions including the respective keyword. The search device searches for a search target that matches all of the plurality of keywords as the search conditions. In addition, the search device searches for a search target matching all of the keywords included in one of the child search conditions and for a search target matching all of the keywords included in the other child search conditions. The search device extracts the combination of search objects that are related from among a combination of any of the search targets searched for by one of the child search conditions and any of the search objects searched for by the other child search conditions. The search device specifies a combination more useful in the transactions to a user than the search target searched for under the specified search conditions from among the combinations. The search device provides information about the specified combinations.</p> |
