Use wildcards and truncation

Use wildcards and truncation in Quick and Expert searches to help make your queries more specific.

Single character wildcard (?)

Use a question mark (?) to replace a single character anywhere in a word. Use one question mark for each character that you want to replace.

Exampleswom?n finds woman, women

t??th finds tooth, teeth, truth, tenth

S?itha finds Smitha, Switha

Multi-character wildcard (*)

Use an asterisk (*) to replace 0 to x number of characters anywhere in a word.

Exampleh*moglobin finds hemoglobin, haemoglobin, hemidemiphosphorylmontotremoglobin

The asterisk (*) must be used in conjunction with search term(s) in order to create boundaries for the Quick and Expert search queries. Any search queries containing only an asterisk with no search term(s) will result in an error. For example, * wn AB results in an error.

Examples

Title field in Quick search: 

t*th finds tooth, teeth, truth, tenth, tragacanth, therewith, toolpath

 

ABSTRACT field in Expert search: 

chem* wn AB finds chemistry, chemical, chemicals

 

ALL field in Expert search:

he*p wn ALL finds help, hemp, heap

Truncation (*)

The truncation command retrieves all the words that start with the same letters as the truncated term, up to the point that the truncation symbol is used.

ExampleComput* finds computers, computing, computerize, etc.

Left truncation (*)

The left truncation command retrieves all terms ending with the same letters as the truncated term.

Example *sorption returns adsorption, absorption, resorption

To avoid unexpected results, use truncation with care.

Examplecolor* retrieves color, colored, colors, Colorado

Stem search terms using $

Use a dollar sign ($) to search for the various forms of a word in Quick and Expert searches. See Autostemming for more details.

Example$management returns manage, managed, manager, managers, managing, management

Using truncation or wildcards turns off the autostemming feature. If you want your results stemmed when using truncation or wildcards, use the $ to manually stem each search term.

NoteUsing truncation and wildcards within quotation marks or braces or with the NEAR or ONEAR proximity/near operators will not provide consistent search results.

 

 

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