Functionality-based URL for CONTAINED IN?

Functionality-based URL for CONTAINED IN?

I have a Course record that has a multi-select list of topics that are covered in that course.  I want to open the TopicView showing just the topics for that course.  Since the TopicRefIDs are stored on the Course record, I need to find all the Topic records where TopicRef is CONTAINED IN the list Course.TopicRefIDs.  Is there an op code for CONTAINED IN?  If so, it's not listed in the Wiki.

As a workaround, I could build a long URL with thisURL = thisURL + "TopicRef = "+ refid except that I'll need to append each criterion with OR rather than AND (&).  Is that possible?  Again, the Wiki only refers to connecting criteria with &.

I would appreciate any help or suggestions on either of these approaches or alternatives.

- Craig