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No matter how much I search, I can't find the information I'm looking for.
I wouldn't have thought I would someday look up "Viagra" in Wikipedia.
This encyclopaedia is convenient for looking up things.
Before adding a new sentence, please check that your sentence brings new vocabulary by searching the keywords.
The precision ratio is an index that indicates how many articles meet the search criteria out of all of the articles retrieved.
As yardsticks to measure the effectiveness of information retrieval there exist those called 'recall ratio' and 'precision ratio'.
It goes without saying, but the search ended in vain.
Because of the storm, we couldn't search for the lost child.
You shouldn't do partial-word searches, since they put a lot of strain on the server.
They explored the Antarctic.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.