This video shows you one way to achieve 100% Total Destruction on Angry Birds Surf and Turf level 14. If you have an alternate strategy please feel free to leave a detailed comment below.
Fire the first White bird low, bombing the thin ice blocks below and ricocheting into the main structure. Blast the TNT in the left structure with the Yellow bird. Again, bomb the thin ice blocks with the White bird, then clean up debris from the left structure with the Yellow bird. Loft the Sardine Can to land dead-center on the left platform.