Q:

exact and case insensitive match for a multi word token in a string python

I have a list which contains and a single and multi-word token. 
brand_list = ['ibm','microsoft','abby softwate', 'tata computer services']

I need to search any of these words present in a title string. I am able to find a single word. But for a multi-word token, my code fails. 
Here is my code. Please help me out. Here is my solution.
import string
def check_firm(test_title):
    translator = str.maketrans('', '', string.punctuation)
    title = test_title.translate(translator)
    if any(one_word.lower() in title.lower().split(' ') for one_word in brand_list):

        status_code_value = 0
        print("OEM word found")
    else:
        status_code_value = 1
        print("OEM word not found")

    print("current value of status code ------------>", status_code_value)

A:

Change this:
if any(one_word.lower() in title.lower().split(' ') for one_word in brand_list):

to this:
if title.lower() in brand_list:

Hence:
import string
brand_list = ['ibm','Microsoft','abby softwate', 'TATA computer services']
brand_list = [x.lower() for x in brand_list] # ['ibm', 'microsoft', 'abby softwate', 
                                             #  'tata computer services']

def check_firm(test_title):
    translator = str.maketrans('', '', string.punctuation)
    title = test_title.translate(translator)

    if title.lower() in brand_list:
        status_code_value = 0
        print("OEM word found")
    else:
        status_code_value = 1
        print("OEM word not found")

    print("current value of status code ------------>", status_code_value)

check_firm('iBM')
check_firm('Tata Computer SERVICES')
check_firm('Khan trading Co.')

OUTPUT:
OEM word found
current value of status code ------------> 0
OEM word found
current value of status code ------------> 0
OEM word not found
current value of status code ------------> 1

Note: I converted all the elements in the list to lower() using:

 brand_list = [x.lower() for x in brand_list]

This will ensure the comparison is made correctly.
EDIT: 
OP: but my input tile is title string. for example "Tata Computer SERVICES made a profit of x dollars". In that case, how can we find the string? 
In such case, I would opt for splitting the string before passing to the function:
inp_st1 = 'iBM'
inp_st2 = 'Tata Computer SERVICES made a profit of x dollars'
inp_st3 = 'Khan trading Co.'

check_firm(inp_st1)
check_firm(" ".join(inp_st2.split()[:3])) # Tata Computer SERVICES
check_firm(inp_st3)

