Tam sim no peb cov tshuab yog tag nrho ntawm cov qib siab heev.Los ntawm ntau txoj kev koom tes, peb cov khoom raug xa tawm mus rau ntau lub tebchaws thiab cheeb tsam, xws li: Tebchaws Meskas, Canada, Spain, Qaib ntxhw, United Kingdom, Netherlands, Finland, Australia, South Africa, Kaus Lim Qab Teb, United Arab Emirates, Nyab Laj, Brazil, Malaysia, India, Thaib, Morocco, Bangladesh, Guatemala, Ethiopia. Tam sim no peb cov chaw tsim khoom tau tsim kev sib raug zoo nrog kev sib raug zoo nrog qee tus neeg ua lag luam txawv teb chaws.

Peb ib txwm lo rau "cov neeg siv khoom yog thawj, zoo ua ntej". Peb ua raws li kev lag luam-taw qhia, ua kom muaj txiaj ntsig kev lag luam raws li qhov chaw, thiab tas li kho cov tswv yim lag luam, tshawb fawb thiab tsim cov khoom tshiab.