I randomly generated some substrings of letters to find names with these substrings on behindthename. I stuck to just 2 letters and tried to get a vowel in there to encourage more name choices. Enjoy the CAF!
DH (yu): Aliyu, Daryush, Guanyu, Kazuyuki, Lyudmil, [name_m]Mayur[/name_m], Ryū, [name_m]Vayu[/name_m], Yuhanna, [name_u]Yuri[/name_u]
DW (ly): [name_f]Alyssa[/name_f], [name_u]Beverly[/name_u], [name_u]Brooklyn[/name_u], [name_u]Calypso[/name_u], [name_f]Eirlys[/name_f], [name_f]Lily[/name_f], [name_f]Lyla[/name_f], [name_f]Molly[/name_f], [name_f]Odalys[/name_f], [name_u]Romilly[/name_u]
DS (p.a): [name_m]Caspar[/name_m], [name_m]Deepak[/name_m], Gianpaolo, [name_m]Hohepa[/name_m], [name_m]Paavo[/name_m], [name_u]Pace[/name_u], [name_m]Paco[/name_m], [name_u]Palmer[/name_u], [name_m]Patrick[/name_m], [name_u]Sparrow[/name_u]
DS (ez): [name_m]Cezar[/name_m], [name_m]Dezi[/name_m], [name_m]Ebenezer[/name_m], [name_m]Eliezer[/name_m], [name_m]Ezekiel[/name_m], [name_u]Ezra[/name_u], [name_u]Hezekiah[/name_u], [name_m]Jabez[/name_m], Reziko, Zezé
DD (ge): [name_f]Angeline[/name_f], [name_f]Bridget[/name_f], [name_f]Eugenie[/name_f], [name_f]Evangeline[/name_f], [name_u]Gefen[/name_u], [name_f]Georgia[/name_f], [name_f]Gertie[/name_f], [name_f]Imogen[/name_f], [name_f]Paige[/name_f], Shigeko
DS (gu): [name_m]Angus[/name_m], [name_u]August[/name_u], Caligula, Eguzki, Guanyu, [name_u]Gus[/name_u], [name_m]Miguel[/name_m], [name_m]Montague[/name_m], [name_m]Teague[/name_m], Yonaguska
DS (ck): Acke, [name_u]Beck[/name_u], [name_u]Beckett[/name_u], [name_m]Chadwick[/name_m], Eckart, [name_m]Finnick[/name_m], [name_m]Frederick[/name_m], [name_u]Jack[/name_u], [name_u]Mackenzie[/name_u], [name_m]Tucker[/name_m]