Accurate search

[somewordstoolate]

1. Background and Problem
   When using the query "Haagsma C, van Riel P, de Jong A, van de Putte L. Combination of sulphasalazine and methotrexate versus the single components in early rheumatoid arthritis: a randomized, controlled, double-blind, 52 week clinical trial. British Journal of Rheumatology. 1997;36(10):1082.", the PDF could not be downloaded even though an accurate search result is available on Google Scholar.

Through debugging, it was discovered that when performing an accurate search (e.g., using the paper title), and Google Scholar returns only one search result, the div's class_ attribute value should be gs_r gs_or gs_scl gs_fmar.

2. Modifications
   Updated the HTMLparsers.scholarParser function name (previously named schoolarParser, corrected a spelling error from "schoolar" to "scholar") and modified its soup.findAll logic to correctly identify the div element with the specific class_ attribute when there is only one search result.

[goghvan1113]

The newest branch v1.4.1 modifications for accurate search: （in HTMLparsers.py）
replacing
for element in soup.findAll("div", class_="gs_r gs_or gs_scl"):
with

for element in soup.findAll(
        "div", class_=["gs_r gs_or gs_scl", "gs_r gs_or gs_scl gs_fmar"]
    ):  # "gs_r gs_or gs_scl gs_fmar" for only one search result