Perhaps you should try some spelling variations:
dnan clamp » dna clamp (Expand Search), dna clamps (Expand Search), can clamp (Expand Search)
chimp can » chip can (Expand Search), chirp can (Expand Search), camp can (Expand Search)
clamp war » clamp ar (Expand Search), clamp a (Expand Search), clamp can (Expand Search)
comme van » comme avant (Expand Search), comme dans (Expand Search), comme la (Expand Search)
war news » isar news (Expand Search), a news (Expand Search)
et comme » et comment (Expand Search)
van ngoc » tran ngoc (Expand Search), ha ngoc (Expand Search), bao ngoc (Expand Search)
j dnan » _ dnan (Expand Search), j dna (Expand Search), a dnan (Expand Search)
2 nat » 2 nat2 (Expand Search), _ nat (Expand Search), 2 nas (Expand Search)
j et » j e (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( 2 nat chimp can new ) OR ((( j dnan clamp war news ) OR ( j et comme van ngoc ))))~.
• Adding a wildcard symbol may retrieve word variants: (( 2 nat chimp can new ) or ((( j dnan clamp war news ) or ( j et comme van ngoc ))))*.