Word boundary left
Finds only expressions in the database containing one word matching the search pattern at its beginning.
If you enter tür and select Word boundary left, Haustür not be found.
If you deactivate this option, Haustür will be found, stürmen, however, will be found, too.
Match whole expression
Finds only expressions in the database matching the whole search expression.
This option is useful to filter out long lists of idioms if you just want a simple translation of a word.
If you enter careful, select Match whole expression and deactivate Word boundary right, careful, carefully and carefulness will be found, but expressions such as after careful consideration and more careful will not be found.
Word boundary right
Finds only expressions in the database containing one word matching the search pattern at its end.