Tips for More Effective COCA Search

  • To set up a good search string, choose the right search key word (an anchor word) carefully. Not all adjacent words are relevant for a search (or interpretation of the search). E.g.) if you are looking for a content word that goes into the blank in I hope to ___?___ the goal, you should use the goal as an anchor word (the key word for search) because it determines the kind of the verb you should use in the blank. You should not use hope to as an anchor word.
  • Use a search (word) string that is an appropriate size. If the search string is too short (only one or two words), it is difficult to get a reliable answer quickly. (e.g. using only "implications" as a search word to find the preposition for "implications ___ teaching ESL") If the search string is too long (too specific), it is difficult to find many matching texts. (e.g.  using "implications for teaching ESL")
  • For interpreting the results, Go for MORE FREQUENTLY used phrases. "Hot debate" and "Heated debate" are both possible collocates in English, but "heated debate" is much more commonly used.
  • Always check the CONTEXT and GENRE. It is often dangerous to look at only the frequency count and decide which one to use. Having a higher frequency counts does not always mean both words are possible in a given context. For example, "totally" and "fully" are considered synonyms, but only one of them is desirable in academic English. Also, "received the phone call" and "answer the phone" are both possible/frequent in English, but only one of them would work in a given context.
  • If there is no or few result showing, it happened for one of the following reasons: 1) one of the words could be spelled wrong, or an ungrammatical word or 2) the word combination is impossible or rare.