This trick is useful for anyone who needs bulky texts:

– Translators who are paid by target word
– Students who need to beef up term papers
– Politicians

1. Go to a site that extract frequent words like http://www.textfixer.com
2. Paste your text, count the words
3. Find wordy synonyms for each (e.g. in an Excel sheet); you can use a thesaurus or monolingual dictionary
4. Use find and replace in your word editor to replace single words with lengthy phrases

E.g.:
municipality = municipal authority
pasture = grazing land
service = service provision
government = state authority