Does Netvibes support google advanced search operators?
With Netvibes Google News search app, you can get the most value out of Google search

Google Advanced Search operators help you find exactly what we’re looking for
Google Search usually ignores punctuation that isn’t part of a search operator
Don’t put spaces between the operator and your search term. A search for site:nytimes.com will work, but site: nytimes.com won’t.
allintitle:keyword (everything you typed must be in the title) or intitle:keyword (some of the words you typed are in the title)
Google will provide websites with that phrase in the title tagsallinurl:keyword
Google will provide websites with that phrase in the url
Exclude words from your search
Put - in front of a word you want to leave out. For example, jaguar speed -car
Search for an exact match
Put a word or phrase inside quotes. For example, "tallest building".
Search for wildcards or unknown words
Put a * in your word or phrase where you want to leave a placeholder. For example, "largest * in the world".
Combine searches
Put "OR" between each search query. For example, marathon OR race.
Search for a specific site
Put "site:" in front of a site or domain. For example, site:youtube.com.
Search for related sites
Put "related:" in front of a site or domain you already know. For example, related:time.com.
Restrict search to a specific file type
Put filetype in front of the file type you want to search for. Look here for a list of supported filetypes.
Using boolean operators like AND, OR, - (NOT) that can be combined, you can create very complex results.