Here's how to disable SafeSearch:
Visit the Google Preferences page.
In the "SafeSearch Filtering" section, select Do not filter my search results.
Click Save Preferencese.
http://support.google.com/websearch/...=en&answer=510
Modify SafeSearch setting
Many users prefer not to have adult sites included in search results. Google's SafeSearch screens for sites that contain explicit sexual content and removes them from your search results. No filter is 100 percent accurate, but SafeSearch should eliminate most inappropriate material. You can choose from among three SafeSearch settings:
Moderate filtering excludes most explicit images from Google Images results but doesn't filter ordinary web search results. This is your default SafeSearch setting; you'll receive moderate filtering unless you change it.
Strict filtering applies SafeSearch filtering to all your search results (i.e. both image search and ordinary web search).
No filtering, as you've probably figured out, turns off SafeSearch filtering completely.
To change your SafeSearch setting, tap the gear icon on the Google Search app home screen. Turn SafeSearch Off to stop filtering adult content from search results.
Note: The 'Moderate' setting filters explicit images only from your search results. The 'Strict' setting filters both explicit text and explicit images.