Domain name question...

ok this might probably be answered 100% correct by google only, but here are many experienced people who know much more on subject than i....

Lets say i have a 4 word KW (ABCD) where last word (D) can be 15-20 different words.

for example:
ABC=good looking girls
and D= free, online, single etc....

if i call my site "goodlookinggirls.xxx" would that domain name help SERP if someone is serching for "good looking girls free"???

this is rather important as there are 50 000 monthly searches total for those 15-20 ABCD

the problem is there's gonna be practicly no searches for ABC, which will be the domain...

thats why it is important to me if it has any real value, as obviously i have no value in ABC KW because of small search volume...

IMHO

For a new site with zero backlinks. The exact name domain will always show up for the exact keyword phrase.

so if user types in ABCD they are more likely to see ABCD.tld vs ABC.tld
exact names still rule.

But backlinks and content can overcome any ranks over time.

If you want to target keyword D

you can also

ABC.tld/why D is the best in the world.html

Cause D is mentioned google will use that

yeah, thats part of plan
making site/d.html pages

but the qustion is does site ABC itself it improve SERP

i realize i could take 15-20 microniche domains, but it would sound really stupid and is time limited
example
good looking girls february

so people are only gonna search for it for month or so...