A sua pesquisa - "(((national coorperative) OR (national comparative)) highway research program." - não corresponde a nenhum registo.
Talvez deva tentar algumas variações de ortografia:
national coorperative » national cooperative (Expandir a Pesquisa), national cooperation (Expandir a Pesquisa), national operative (Expandir a Pesquisa)
national comparative » sectional comparative (Expandir a Pesquisa), international comparative (Expandir a Pesquisa), national comparison (Expandir a Pesquisa)
research program » research progress (Expandir a Pesquisa), research project (Expandir a Pesquisa)
national coorperative » national cooperative (Expandir a Pesquisa), national cooperation (Expandir a Pesquisa), national operative (Expandir a Pesquisa)
national comparative » sectional comparative (Expandir a Pesquisa), international comparative (Expandir a Pesquisa), national comparison (Expandir a Pesquisa)
research program » research progress (Expandir a Pesquisa), research project (Expandir a Pesquisa)
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- Se retirar as aspas poderá fazer uma pesquisa mais abragente: (((national coorperative) OR (national comparative)) highway research program..