Perhaps you should try some spelling variations:
"robert de burland" » "roberta de burland" (Expand Search), "robert e burland" (Expand Search), "robert lee burland" (Expand Search), "robert _e burland" (Expand Search), "robert je burland" (Expand Search), "robert ae burland" (Expand Search)
"robert de tackling" » "roberta de tackling" (Expand Search), "robert e tackling" (Expand Search), "robert lee tackling" (Expand Search), "robert _e tackling" (Expand Search), "robert je tackling" (Expand Search), "robert ae tackling" (Expand Search)
"robert d buckling" » "robert _ buckling" (Expand Search), "robert j buckling" (Expand Search), "robert a buckling" (Expand Search)

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: "((\"robert de burland\") OR (((\"robert de tackling\") OR (\"robert d buckling\"))))~".
• Removing quotes may allow a broader search: (( robert de burland ) OR ((( robert de tackling ) OR ( robert d buckling ))))~.
• Adding a wildcard symbol may retrieve word variants: (("robert de burland") OR ((("robert de tackling") OR ("robert d buckling"))))*.