KEYWORDS not ranking

Hi i go a old website like 1-2 months old but the main problem is that the keywords that I want to rank aren't ranked yet in the serpbook . I have fetched as google and also used lsi keywords and also tried backlinking them also I edited the original one and added more content ( someone said it helps ranking ) but no work the other keywords that I thought and don't want them to rank for are ranked but poorly what shall I do :( . I got backlinks from social bookmarks , comments , web 2.0's…

KEYWORDS not ranking