How do teams 'qualify for world cup qualifying'?

don't think understand you're asking.

fifa's world cup have 2 stages: qualification stage , final stage.

teams not qualify world cup qualifying stage.

association affiliated fifa may participate in world cup qualifying stage representative team, have undertake several measures, , how decided if can take part or not in stage.

have comply fifa statutes, accept refereeing matters , fifa's right use logo or images, participate best possible team, have fair-play, , obliged fulfil several requirements, stadiums conditions many other aspects goes shirt , colour numbers.

why fifa such things? principle of equality. since there more fifa members united nation members, there wealthy , poor members. in qualifications, @ least of them take part unified basic criteria.

when give examples san marino, bhutan or montserrat because 1 association fulfilled criteria , other did not. or because did not register qualification 1 reason or another.

may see here: http://www.fifa.com/worldcup/archive/sou...
bhutan withdrew in 2010 qualification stage other african teams. may see here: http://www.fifa.com/worldcup/preliminary... "bhutan, guam, mauritania , brunei darrussalam have not registered [2014] competition."

teams may disqualified, syria: http://www.fifa.com/worldcup/preliminari...

groups in qualifying stages determined fifa rankings in each confederation. in each confederation draw, best teams of confederation in pot 1 , on until teams have correspondence in pot. every qualification group has @ least 1 team pot 1 , 1 team from, let's say, pot 6. even.

i know there groups qualify world cup, how decided teams enter these groups. small teams san marino in qualifying groups others (bhutan or montserrat name two) not. how decided?

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