Perhaps you should try some spelling variations:
"developing intelligent surveillance based" » "developing intelligent surface based", "developing intelligent surveillance camera", "developing intelligent surveillance after", "developing intelligent surveillance avss"
"decision intelligence surveillance a" » "vision intelligent surveillance a", "decision intelligence surveillance _"

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: "((\"developing intelligent surveillance based\") OR (\"decision intelligence surveillance a\"))".
• Removing quotes may allow a broader search: (( developing intelligent surveillance based ) OR ( decision intelligence surveillance a )).
• Adding a wildcard symbol may retrieve word variants: (("developing intelligent surveillance based") OR ("decision intelligence surveillance a"))*.