In some cases, the query expansion removes the original intention of a query. If you replace "blogger" with "blog" in [blogger profile images], the query no longer includes the most important keyword.
To force Google not to change your keyword, add a plus (+) in front of the keyword. Instead of searching for [blogger profile images], you'll use this query: [+blogger profile images]. Alternatively, you could use quotes even for a single keyword: ["blogger" profile images] or add a plus after your keyword: [blogger+ profile images].
If you want to make a query fuzzier, use the synonymous operator (~): a search for [google earth ~images] will include results that contain "imagery", a more appropriate word than "images" for describing Google Earth's satellite pictures.
Depending on your query, Google uses something intermediary between + and ~, by including web pages that contain synonymous or different morphological forms for some of the keywords, but you can explicitly define the importance of your keywords. Use + for the most important keywords that should never be modified or ignored and ~ for general keywords that could be replaced with something more specific.
