Ignore sub sup elements in search

Question

In continuation from the link- (Ignore elements in cts:search)

I have for eg 3 scenarios for phrase search-

1. CO<sub>2</sub> lasers
2. <sup>2</sup>H- and <sup>3</sup>H-induced few nucleon transfer reactions
3. Mixed state, H<sub>c2</sub>, surface sheath

I have created a field query & defined it in a constraint named 'CL'. Now-

1. CL:"CO2 lasers"

• Works with tokenizer overrides value set to 2, symbol.

2. CL:"2H- and 3H-induced few nucleon transfer reactions"

• Works with tokenizer overrides value set to 3, symbol. Does each additional occurrence of sub sup element increase the tokenizer character value?

3. CL:"Mixed state, Hc2, surface sheath"

• Fails for this scenario as it seems it works only for numerical values in sub,sup. In this case the value of sub is 'c2'. Is there a way we can make this work?

Also is there a solution to make this work in case of free text search? for eg phrase search without using constants- "CO2 lasers" "2H- and 3H-induced few nucleon transfer reactions" "Mixed state, Hc2, surface sheath"

Any help would be really appreciated.