Talvez deva tentar algumas variações de ortografia:
combat disease » combat diseases (Expandir a Pesquisa), common disease (Expandir a Pesquisa), comorbid disease (Expandir a Pesquisa)
disease newer » disease never (Expandir a Pesquisa), disease new (Expandir a Pesquisa), disease need (Expandir a Pesquisa)
company years » company year (Expandir a Pesquisa), company cars (Expandir a Pesquisa), comparing years (Expandir a Pesquisa)
complex tail » complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa), complex tap (Expandir a Pesquisa)
acid company » aid company (Expandir a Pesquisa), grid company (Expandir a Pesquisa), rfid company (Expandir a Pesquisa)
nad complex » nadp complex (Expandir a Pesquisa), nadph complex (Expandir a Pesquisa), band complex (Expandir a Pesquisa)
gel combat » del combate (Expandir a Pesquisa), help combat (Expandir a Pesquisa), cell combat (Expandir a Pesquisa)
tail ngo » tail co (Expandir a Pesquisa), tail non (Expandir a Pesquisa)
how » show (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( _ gel combat disease newer ) or ((( _ nad complex tail ngo ) or ( 3 acid company years how ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ gel combat disease newer ) OR ((( _ nad complex tail ngo ) OR ( 3 acid company years how )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ gel combat disease newer ) or ((( _ nad complex tail ngo ) or ( 3 acid company years how ))))*.