Search the help guide for PDF connector. There is the PdfConnector Properties, Methods, and Events page that will have the helpful information for you. 

http://help.openspan.com/80/

1)In PDF connector, one more method is there which is "find relative segment" where we enter the word we are looking for and which occurence you want (1 or 2) and  provide the relativeSegmentOffset. Extract proxy of that would hold your result.

2) you can use a for loop before find relative segment method and find out your texts to return results back to back.

Other ways you can try our something on these lines..

1)You can use a PDF connector and use find line method where you give your search text which you want to pull you want to pull from pdf.Do a extract proxy  from find line and store results onto word 

2) If you want to pull your text with respect to any other line, you can use string utilities split method. Extract proxy from that and use get method from that proxy to get particular element in array which is xxx..