Google has some advanced search features that few people use, which is a shame. Here are some of them. I am sure there are a few more, but these are the more useful ones.

To makes things simpler:

Google advanced search

Exact phrase

Wildcard word(s)

Excluding words/phrases

Limit to domain

Find pages that link to somewhere specific

Search newspaper archive

Site information

Site cache (browse blocked sites)

Find related sites

Define a term

Term origin

Search for social tags

Search hashtags

Search for products within a price range

Logical “OR”

Logical AND

Nearby terms

Search for all terms

Search for all terms in page title

Search for all terms in URL

Include location in search terms

Limit results to particular file type

Check weather

Time somewhere

You public IP

Movie showings nearby

Time-limit search result