I think Pikmin Bloom's search function has some features a lot of people are unaware of. I noticed some things that aren't documented on the official text search function post or pikminwiki's interface page (mostly the mushroom keyword for flowers/petals).

I've tried to condense important information, so this post assumes you have used the search function before. Check out the aforementioned links if you leave this post with any confusion!

Pikmin

• flower status: leaf | bud | bloom | flower | wilted | <flower type>
  • bloom means flowers have not been plucked
• organization: favorite | squad | busy | standby | lifelog | <location> | <year>
  • location only includes what's shown on pikmin info screen
• decor: decor | special | rare | <decor name>
• friendship: X* | X-Y* (0-8)
  • X = HeartCount or LowerBound, Y = UpperBound (optional), '*' denotes friendship

Helpful Examples

• =flower
  • '=' makes search exact, excluding flower box/crown decor pikmin
• "<decor name>"&!decor
  • yields pikmin that have yet to acquire their decor type
• (rock;purple)&(leaf;bud)&special&!8*
  • optimized for strengthening special mushroom squads
  • special can be replaced with <decor type> (ex. balinese) for strongest decor

Flowers & Nectar

• keywords: seasonal | mushroom/available

Useful Examples:

• mushroom&white
  • show all nectar/petals white and crystal mushrooms are currently yielding

Note: I don't think you can search by quantity? Unfortunate, please correct me if I'm wrong

Postcards

• <location>| year
• X* | X-Y* (1-4)
  • yields mushroom rank, exact or range. works like friendship search

Note: can't search for specific people :(

Logical Operators

• AND: {expr}&{expr}
• OR: {expr};{expr}
• NOT: !{expr}
• GROUPING: ({expr})
• Evaluate "as-is": "{expr}"
  • allows searching for nicknames and locations containing logical operators
• Exact Match: ={expr}
• Order of Operations:
  • group () -> NOT ! -> AND & -> OR ;

Note: there are multiple options for some of these. It's best to pick one to avoid confusion, and these are the most clear in my opinion.

Tips & Quirks

• sort your pikmin before searching!
• your selected pikmin persist if you cancel your search, allowing you to do multiple searches.
  • can't change sorting method in between searches if pikmin are selected, though
• special isn't actually a keyword filter (exact match) for event decors. I just included it in that section because it should be used as such, otherwise it causes confusion surrounding nicknames/locations. but yeah, typing "sp" will yield all special decors.

I hope this is helpful! I'm open to feedback and criticism on formatting or anything I missed. Thanks for reading!