id	keyword
ajoaa-5416	income
ajoaa-5416	land
ajoaa-5416	quality
ajoaa-5416	household
ajoaa-5416	land quality
ajoaa-5416	vietnam
ajoaa-5416	nguyen
ajoaa-5416	study
ajoaa-5416	quantile
ajoaa-5416	household income
ajoaa-5416	development
ajoaa-5416	journal
ajoaa-5416	crop