Perhaps you should try some spelling variations:
"sideslip charge estimation" » "sideslip channel estimation", "sideslip age estimation", "sideslip gaze estimation", "sidestep charge estimation"
"sideslip curve estimation" » "sideslip recursive estimation", "sideslip age estimation", "sideslip time estimation", "sidestep curve estimation"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sideslip charge estimation\") OR (\"sideslip curve estimation\"))".
• Removing quotes may allow a broader search: (( sideslip charge estimation ) OR ( sideslip curve estimation )).
• Adding a wildcard symbol may retrieve word variants: (("sideslip charge estimation") OR ("sideslip curve estimation"))*.