1) Google "Singapore Brides".
There may be ads (paid search results) like this one (this is a screen capture. you can't click on it):
2) Take a note of the number of ads and what they are advertising for. In this case, it is trying to sell wedding gowns to Singapore Brides.
3) Then take a look at first 3 or first 5 search results. In this case, the first 3 results are:
a) SingaporeBrides, a wedding directory
b) Blissful Brides, a bridal magazine, and
c) Singapore Brides, a Facebook page.
4) Now Google the following search terms and do the same, take a note of the number of ads and the services or goods being advertised, and then note the first 3 or 5 search results.
a) Thai Brides
b) Malaysian Brides
c) Indonesian Brides
d) Vietnamese Brides
e) Philippine Brides
The search results for Malaysian brides had a forum on boutiques and wedding photography for the first and third search result. But the rest of the top results (the 3 paid results/ads, and the second search result) were for mail order brides or matchmaking services.
Well, "Indonesian Bride" had "Wedding in Bali as one of the ads.
"Thai Bride" 3rd result was a documentary/video. But it was about the "introduction service" for meeting a Thai potential wife.