Perhaps you should try some spelling variations:
"preparation deep travaux" » "preparation eeew travaux", "separation deep travaux", "preparation du travaux", "preparation des travaux", "preparation les travaux", "preparation et travaux"
"partition au travail" » "partition ad travail", "partition du travail", "partition _ travail", "partition _u travail", "partitioning au travail", "partition de travail"
"partition a travail" » "partition _ travail", "partitioning a travail", "partition du travail", "partition de travail", "partition _ travails"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("preparation deep travaux") OR ((("partition a travail") OR ("partition au travail"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"preparation deep travaux\") OR (((\"partition a travail\") OR (\"partition au travail\"))))".
• Removing quotes may allow a broader search: (( preparation deep travaux ) OR ((( partition a travail ) OR ( partition au travail )))).
• Adding a wildcard symbol may retrieve word variants: (("preparation deep travaux") OR ((("partition a travail") OR ("partition au travail"))))*.