Perhaps you should try some spelling variations:
rise » risk
vie » vien, viec, view
viet » vient, viect, viewt
vient » viennt, viecnt, viewnt, vien, vieng
viewctnam" » vienwctnam", viecwctnam", viewwctnam", vietnam"
vientnam" » vienntnam", viecntnam", viewntnam", viennam", viengnam", vietnam", vienam", vietnams"
resilient » resilience

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

• If you are trying to use Boolean operators, they must be ALL CAPS: "(rise OR (vie OR (viet OR vient))) (resilient OR residents) of (viewctnam" or vientnam")~.
• Removing quotes may allow a broader search: (rise or (vie or (viet or vient))) (resilient or residents) of (viewctnam or vientnam )~.
• Adding a wildcard symbol may retrieve word variants: "(rise or (vie or (viet or vient))) (resilient or residents) of (viewctnam" or vientnam")*.