Phonetics 186 Language 40 Linguistics 38 English language 33 History 33 Planets 33 Phonology 28 Scientology 25 Literature 22 Dianetics 21 Scientology--Dianetics 18 Planets; Descriptive astronomy 15 Globalization 14 India 14 Biography 13 Malayalam; Drama 13 മലയാളം; മലയാളം നോവല്‍ 13 Climatic changes 12 Literature Malayalam 12 Travel 12 മലയാളം; നാടകം 12 Life on other planets 11 Research 11 Women 11 Earth sciences 10 Grammar, Comparative and general 10 History and criticism 10 Human ecology 10 Malayalam literature 10 Social sciences 10