Ohcanbohtosat - (("Twenty-21st century Forecasting.") OR ("Twenty-16th century Forecasting."))~
Ozuin - (("Twenty-21st century Forecasting.") OR ("Twenty-16th century Forecasting."))~ - eai gávdnon bohtosat.
Gánnáha geahččalit iešguđetlágán čállinhámiid:
- "Twenty-21st century Forecasting." »
- "Twenty-16th century Forecasting." »
Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.
- Sánit AND, OR ja NOT sáhttet moivet ohcama; geahččal lasihit aisttonmearkkaid ohcansániid birra: "((\"Twenty-21st century Forecasting.\") OR (\"Twenty-16th century Forecasting.\"))~".
- Sáhtát oažžut eanet bohtosiid go sihkut aisttonmearkkaid: (( Twenty-21st century Forecasting. ) OR ( Twenty-16th century Forecasting. ))~.
- Joker-mearkkaid geavahemiin sáhtát gávdnat earálágán sátnehámiid: (("Twenty-21st century Forecasting.") OR ("Twenty-16th century Forecasting."))*.