search

[1]	search through , examine , scrutinize , check , comb (through) , explore , go through , investigate , scout out , inspect , look at/into , probe , scour , sift through , pry into , hunt/rummage through , inquire/enquire of , (Colloq) plough through
[2]	search for , look (about/around) , cast about , seek , leave no stone unturned
[3]	seek , look for
[4]	look
[5]	research , explore

[1]	hunt , hunting
[2]	lookup , hunt , pursuit , quest
[3]	researching , analysis , exploration , examination , scrutiny , probe , study , perusal , sifting , inspection , scouring , inquiry/enquiry