Perhaps you should try some spelling variations:
linear sequences » linear recurrences, integer sequences, linear sequential
sonar sequences » binary sequences, cover sequences, stationary sequences
line sequence » live sequence, gene sequence, gene sequences

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: basic ((((linear sequences) OR (line sequence))) OR (sonar sequences)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "basic ((((linear sequences) OR (line sequence))) or (sonar sequences))".
• Adding a wildcard symbol may retrieve word variants: basic ((((linear sequences) OR (line sequence))) or (sonar sequences))*.