• I asked "average salary in Japan 1984", but wolfram alpha think i am asking how much i can earn in japan.
• I asked "hakka speaking population in hong kong", but it assume i am asking about the city's stat
• I asked "Boeing 929 max speed", but it give me the cruising speed of "929 most boeing aircraft"
• I asked "Airbus 321LR neo range", but it give me data of original A321
• I asked "speed of sound in venus atmosphere", it only tell me the pressure, tempeature and composition
• I asked "triple point of plutonium", it think i was asking about carat point.
• I asked "amount of seconds in year 2015", it only counted 11 months and 30 days, as well as ignored leap second.
• I asked "most severe affecting amami oshima", what i get is only its geogrphy
• I asked "most recent earthquake near yuzhno-sakhalinsk", it listed all without indicating which is the most recent one
• I asked "english speaker in scotland", it assume i am talking about scotland in USA. It do allow me to pick which scotland i am talking about, but all options are in USA. So I asked "english speaker in scotland, uk", but still the same.
• I asked "L2 english speaker in canada", and I get "760 million".
• I asked "property tax rate in mongolia", and i get the definition of property tax
• I asked "amount of people immigrate to china every year" and it tell me 1.36 billion.
• I asked "amami oshima sign language number of signer" and it give me lyrics for a song called sign language
• I asked "goodbye in japanese" and it tell mea it is ?, which mean B, or in net slang it mean thx.
• I asked "latin speaker" and it say data not available.

So, how can I improve my search queries to make it return proper results?