  We have performed an extensive search for planet candidates in the publicly
available Kepler Long Cadence data from quarters Q1 through Q6. The search
method consists of initial de-trending of the data, applying the trend
filtering algorithm, searching for transit signals with the Box Least Squares
fitting method in three frequency domains, visual inspection of the potential
transit candidates, and in-depth analysis of the shortlisted candidates. In
this paper we present 150 new periodic planet candidates and 7 single transit
events, 72 of which are in multiple systems. The periods of these planet
candidates vary from $\sim$0.17\,day to $\sim$ 440\,day. 124 of the planet
candidates have radii smaller than 3 \rearth. We recover 82.5% of the Batalha
et al. (2012) KOI catalog. We also report 40 newly identified false
positives---systems that look like transiting planets, but are probably due to
blended eclipsing binaries. Our search improves the statistics in the short
period and small planet radii parameter ranges.
