How to find phrase set for phrase

Dear Team,

My requirement is to change the sort sequence of selected phrases in phrase set.

Question

I need to get the phrases based on language and note and for that phrase i need to get the phrase set.

Some time user will give phrase set as input, in that case we have to change the sort seqeunce of phrases for that particular pharse set only.How to get the phrases and corrresponding phrase sets.Please provide the table or function modules.

And for changing the sort sequence ,Which function module can i use in function group C1F1 and how?

Please give me your answers

Thanks