Search for whole word(s) only

[rw251]

E.g. some concepts (esp. brand drug names) are also substrings of other concepts. You can currently define a list as:

INCLUDE: "actos" (brand name of pioglitazone) EXCLUDE: "lactose", "galactosaemia", "galactosidase", "galactosaminidase"

Perhaps better to either just search for whole words, but allow wildcards. So e.g. if searching for diabetes could do "diabet*" to match diabetes and diabetic.

[rw251]

Or the search effectively does *actos* unless you use the following syntax:

actos - matches actos, tractos, lactose, and actosia [actos - matches actos, and actosia actos] - matches actos and tractos [actos] - matches actos

[rw251]

We now search for either:

1. whole words or
2. wildcards (e.g. diabet*)

This is sufficient to resolve this issue.