Perhaps you should try some spelling variations:
"trees algorithms" » "tree algorithms", "access algorithms", "treatment algorithms", "trues algorithms"
"all logarithms" » "math logarithms", "_ logarithms", "all algorithms"
"tree algorithm" » "true algorithm"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trees algorithms") OR ("tree algorithm"))) OR ("all logarithms"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"trees algorithms\") OR (\"tree algorithm\"))) or (\"all logarithms\"))*".
• Removing quotes may allow a broader search: (((( trees algorithms ) OR ( tree algorithm ))) or ( all logarithms ))*.