1. You can use ALT+S to bring the cursor to the search box. This can be faster than using the mouse.

2. Type the search query and press ENTER key. You need not click on the Search Dictionary button to start search.

3. You can use Unicode Hindi to search Hindi words. If the search fails,try to use fragments of the word. That might be useful if there is a spelling mismatch.

4. If searching multiple words, try to search individual words. That is more reliable than searching a phrase.