Perhaps you should try some spelling variations:
communication conversion » communication conversation, communications convention, communication cohesion
methods dimensioning » methods dimension, network dimensioning, methods denoising
methods designing » methods design, methods designs, method design
impact lake » impact case, impact loads, impact based

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication conversion ((methods dimensioning) or (methods designing)) impact lake~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication conversion ((methods dimensioning) OR (methods designing)) impact lake.
• Adding a wildcard symbol may retrieve word variants: communication conversion ((methods dimensioning) or (methods designing)) impact lake*.