Cytat:Weak match
Tells the search engine that words within square brackets are related, but not necessarily to be treated as an exact phrase.

Syntax
Square brackets around words [ ].

Example
[giant squid] [blue whale]

Outcome
This image can be found under searches for giant squid or blue whale, but it can also be found for searches for squid or whale etc.

Benefit
This will improve the relevancy of your images This helps you define to the customer that it�s the squid that is ‘giant’ and the whale that is ‘blue’ but also that the words on their own are relevant too.