Perhaps you should try some spelling variations:
"computer application system" » "computer applications system" (Expand Search), "computing applications system" (Expand Search), "colour application system" (Expand Search), "computer allocation system" (Expand Search), "computer application based" (Expand Search), "computer application solder" (Expand Search)
"computer animation system" » "computer simulation system" (Expand Search), "computer applications system" (Expand Search), "computer interaction system" (Expand Search), "computer navigation system" (Expand Search), "computer automation system" (Expand Search), "computer activation system" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("computer application system") OR ("computer animation system"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"computer application system\") OR (\"computer animation system\"))".
• Removing quotes may allow a broader search: (( computer application system ) OR ( computer animation system )).
• Adding a wildcard symbol may retrieve word variants: (("computer application system") OR ("computer animation system"))*.