Potser podríeu intentar variants ortogràfiques:
"preparation from trial" » "preparation _ trial", "preparation a trial", "preparation from aerial", "preparation from serial", "preparation from tridax"
"preparation from traffic" » "preparation _ traffic", "preparation a traffic", "preparation from paraffin", "preparation from graffiti", "preparation term traffic"
"repartition des travail" » "repartition de travail", "repartition du travail", "repartition des travaux"

Pot obtenir més resultats si ajusta la seva cerca.

• Executant una cerca difusa por obtener resultaste amo pararles similares: (((("preparation from trial") or ("preparation from traffic"))) or ("repartition des travail"))~.
• Si vols fer servir operadors booleans, han d'estar en majúscules: (((("preparation from trial") OR ("preparation from traffic"))) OR ("repartition des travail"))*.
• Eliminan les cometes pot apliar la cerca: (((( preparation from trial ) or ( preparation from traffic ))) or ( repartition des travail ))*.