Perhaps you should try some spelling variations:
"trees algorithms" » "tree algorithms", "tree algorithm", "access algorithms"
"math logarithms" » "matrix logarithms", "smooth logarithms", "parts logarithms"
"all logarithms" » "_ logarithms", "all algorithms", "10 logarithms"

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 ((("all logarithms") OR ("math logarithms"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"trees algorithms\") or (((\"all logarithms\") OR (\"math logarithms\"))))*".
• Removing quotes may allow a broader search: (( trees algorithms ) or ((( all logarithms ) OR ( math logarithms ))))*.