. "\"Any process that activates or increases the frequency, rate or extent of histone H3-K9 trimethylation.\" [GOC:TermGenie]" . . "positive regulation of histone H3-K9 trimethylation" . "up regulation of histone H3-K9 trimethylation" . "up-regulation of histone H3-K9 trimethylation" . "upregulation of histone H3-K9 trimethylation" . . . . "activation of histone H3-K9 trimethylation" .