And actually thought of something else: As I assume you have analytics, check around there how your visitors find you. It might be that as JoshWhite is saying, that you’re overthinking it on the micro scale.
when i search on google by this ‘স্যামসাং বনাম মাইক্রোসফট’ keyword. google show my post. but it show my site title not a post title. and post link also not available. could you see it by this keyword??