Searching by keywords lets you search using one or more words.
   For example: Java Developer

• The "at least one of these words" option implies an OR between each word.
   → search for postings containing: Java or Developer.

• The "all words" option implies an AND between each word.
   → search for postings containing: Java and Developer.

• The "exact search" option means an exact match.
   → search for postings containing the exact phrase: Java Developer.

Punctuation marks such as commas (,) full stop (.) semicolons (;) and colons (:) are ignored.