wade through

abrir camino con esfuerzo, adelantarse de manera dificultosa

Ex: There seems little point in hundreds of cataloguers in separate locations wading through cataloguing codes and classification schemes in order to create a variety of catalogue records for the same work.

(v.) = leer con dificultad, avanzar con dificultad
Ex: There seems little point in hundreds of cataloguers in separate locations wading through cataloguing codes and classification schemes in order to create a variety of catalogue records for the same work.