. "Any process that activates or increases the frequency, rate or extent of RNA polymerase II transcriptional preinitiation complex assembly." . . . . "positive regulation of RNA polymerase II transcriptional preinitiation complex assembly" . "activation of RNA polymerase II transcriptional preinitiation complex assembly" . "positive regulation of RNA polymerase II transcriptional pre-initiation complex assembly" . "positive regulation of RNA polymerase II transcriptional pre-initiation complex biosynthesis" . "positive regulation of RNA polymerase II transcriptional preinitiation complex formation" . "stimulation of RNA polymerase II transcriptional preinitiation complex assembly" . "up regulation of RNA polymerase II transcriptional preinitiation complex assembly" . "up-regulation of RNA polymerase II transcriptional preinitiation complex assembly" . "upregulation of RNA polymerase II transcriptional preinitiation complex assembly" . . .