Well, depending what your essay is about you could try adding attributes to the nouns even where you don't think you really need it. Another way is by repeating some of the things you've said, but put it in a completely different context and, of course, use different words to describe what your writing about. Also before choosing an any online essay writing services assistance you should try to read some online
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Read through it and pad it out, expanding on as many points as you can, lengthening sentences to include a few more words, use two words instead of one, or double-barrelled words like anti-Semitism (that's probably entirely irrelevant but just an example).
Good luck...