How to start a new part of a document on an odd page
To start a new section of your document on an odd page, do the following:
1. Position the cursor before the title of the next part or just in the new line:
Note: As you can see, the next odd page is 9, and page 8 should be blank.
2. On the Layout tab, in the Page Setup group, click Breaks:
From the Breaks dropdown list, select Odd Page:
The new part, including the title, will appear on the odd page:
See also this tip in French: Comment commencer une nouvelle partie d'un document sur une page impaire.