There is no other choice

Sad new for Tuesday that my boss has decided to give up on previous keywords which are "giày thể thao nam" and "giày thể thao nữ".
Honestly, this is my failure, I dont know how to raise their positions up. From the very first days, when I started working with them, they also started lose high positions. I am so disappointed. I know this is a challenge to deal with such difficult keywords.
I think I have to check my forum list if they were really qualified to insert backlinks. Before, when working with Nike and adidas keywords, I used only few forums but the outcomes are better than now. Ok, it maybe because these keywords are too difficult for me.
Thus, I will focus on Lacoste's keywords. Recently, they are showing the positive position, "giày Lacoste chính hãng" is now at top 3, whereas, "giày lacoste" is on top 9 which is actually worse than it was few days ago.
Anyway, wish all you a nice day!