A sua pesquisa - "(((national comparative) OR (international comparative)) highway research program." - não corresponde a nenhum registo.
Talvez deva tentar algumas variações de ortografia:
international comparative » international collaborative (Expandir a Pesquisa), international cooperation (Expandir a Pesquisa), international comparison (Expandir a Pesquisa)
national comparative » sectional comparative (Expandir a Pesquisa), national collaborative (Expandir a Pesquisa), national comparison (Expandir a Pesquisa)
research program » research progress (Expandir a Pesquisa), research project (Expandir a Pesquisa)
international comparative » international collaborative (Expandir a Pesquisa), international cooperation (Expandir a Pesquisa), international comparison (Expandir a Pesquisa)
national comparative » sectional comparative (Expandir a Pesquisa), national collaborative (Expandir a Pesquisa), national comparison (Expandir a Pesquisa)
research program » research progress (Expandir a Pesquisa), research project (Expandir a Pesquisa)
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