Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation depth » propagation delay, propagation data, propagation de
depth excision » depth decision, depth expansion
excision from » exclusion from, excitation from, decisions from
stem » item, step

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: information propagation depth excision from stem~.
• Adding a wildcard symbol may retrieve word variants: information propagation depth excision from stem*.