Terms: Topics (1,870,000,000), topic (1,730,000,000), issue (1,740,000,000), issues (2,260,000,000), problem (2,050,000,000), problems (1,820,000,000), goal (790,000,000), goals (574,000,000),
Boolean: site:org (2,750,000,000), site:com (21,300,000,000), site:net (1,220,000,000), site:gov (463,000,000), site:edu (1,050,000,000), site:biz (38,500,000), site:info (99,400,000), site:int (24,800,000), site:tv (34,100,000),
Terms: objective (284,000,000), objectives (274,000,000), target (882,000,000), targets (248,000,000),
Terms: idea (1,210,000,000), ideas (1,360,000,000), search terms (266,000,000), search term (48,800,000), searches (1,650,000,000),
Terms: current topic (4,420,000), current topics (6,460,000), marker (94,600,000), markers (91,300,000), label (573,000,000), labels (410,000,000), category (4,080,000,000), categories (3,190,000,000), adjective (23,300,000), adjectives (13,300,000), annotation (23,900,000), annotations (18,300,000), property (2,900,000,000), properties (747,000,000),
Terms: marker bacteria (708), marker genes (426,000), marker chromosomes (26,300),
Terms: mark (1,950,000,000), marks (390,000,000), indicator (129,000,000), indicators (151,000,000), noun (47,300,000), nouns (12,700,000), word (1,480,000,000), words (1,340,000,000),