WildCards ???

I'm trying to get the hang of Using WildCards in doing searches on
www.familysearch.org

I'm very thankful to Victor Villarreal for the great tutorial on
WildCards to be found in the "Files" under "Reference Material" under
"Searching the IGI"

. . .but there is one thing I'm just not getting, which probably means
I'm missing some main point in this WildCard search scenario.

when I do a parent search for my GGG grandparents I put in the father's
first name: "Cipriano" and then his last name "Puente" then under the
mother I put in only the first name "Eduarda" and I get these all these
relatives:

You searched for:
Father: Cipriano Puente, Mother: Eduarda

1. JOSE MARIA PUENTE - International Genealogical Index
Gender: Male Marriage: 03 NOV 1847 Santa Maria De Los Angeles, Jalisco,
Mexico
2. GENARA DE LA TRINIDAD PUENTE TORRES - International Genealogical Index
Gender: Female Christening: 20 JUL 1817 Santa Maria De Los Angeles,
Jalisco, Mexico
3. MARIA DEL REFUGIA PUENTE - International Genealogical Index
Gender: Female Marriage: 26 FEB 1835 Santa Maria De Los Angeles,
Jalisco, Mexico
4. CECILIO PUENTE - International Genealogical Index
Gender: Male Marriage: 17 MAY 1843 Santa Maria De Los Angeles, Jalisco,
Mexico

Okay now I decided to substitute a WildCard for the father's first name
"Cipriano" and I entered this WildCard % instead. I was expecting to
get the above results AND some others or at the very least just the
above results repeated, but instead i got:

You searched for:
Father: % Puente, Mother: Eduarda
International Genealogical Index / Mexico (No Matches)

I would like to understand what I'm missing. Shouldn't this WildCard
search have returned at least the same results as above with maybe a
"few" more additions?

thanks,

joseph