Melissa,
Windows Search always searches both filenames and file content in indexed locations. In non-indexed locations
Windows Search by default only searches for filenames but not the content.
You can change this setting, to search content too in non-indexed locations simply from
Control Panel > Folder Options > Search tab:
If you want to search only the content of files, type
content:search_string to Explorer search field which finds all words / strings where you search string appears. For example searching for text (in searching we call it string)
Seven, you need to type
content:seven.
If you want to search exact word / string match, you need to put it within quotation marks. Search
content:"Seven Forums" would find files where the string
Seven Forums appears but
not the files where only the word
Seven or word
Forums appears.
One of your screenshots shows the word
Search written in search field. If you do so, you are telling Windows to search for files where the word
Search appears in the filename. If you do not search for files called
Search, please do not type Search in search field! (Must be my personal record, eight times "search" in a single paragraph

.)
Kari