Search space separated input using pattern matcher

I'm performing search operation using pattern matcher. It works very well on single word input like below:

if "I like to eat healthy diet." is my string and I want to search word "eat", it gives me output as "to eat healthy".

, but in case of space separated inputs

if "I like to eat healthy diet." is my string and I want to search "to eat", it doesn't gives me any output.

Below is the code for search

for (Link link : publication.links) {
            String htmlText = fetch.getData(link.getHref());
            Pattern pattern = Pattern.compile(searchQuery);
            Matcher matcher = pattern.matcher(htmlText);
            while (matcher.find()) {
                int start = matcher.start();

                String prev = getTextBefore(start, htmlText);
                String next = getTextAfter(start, searchQueryPath, htmlText);
                String match = prev.concat(searchQueryPath).concat(next);

                Search searchResult = new Search();
                searchResult.setSearchIndex(start);
                searchResult.setResource(link.getHref());
                searchResult.setMatchString(match);
                searchResult.setTextBefore(prev);
                searchResult.setTextAfter(next);

                String title = parseChapterTitle(htmlText);
                if (title != null) {
                    searchResult.setTitle(title);
                } else {
                    searchResult.setTitle("Title not available");
                }
                searchQueryResults.searchResultList.add(searchResult);
            }
        }

In above code, htmltext is string to be searched for searchQuery. And searchQuery is getting for searchView.