Ohcanbohtosat - (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~
Ozuin - (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~ - eai gávdnon bohtosat.
Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.
- Sánit AND, OR ja NOT sáhttet moivet ohcama; geahččal lasihit aisttonmearkkaid ohcansániid birra: "(( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~".
- Joker-mearkkaid geavahemiin sáhtát gávdnat earálágán sátnehámiid: (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))*.