+linux +gnu
-windows -shareware
+linu* +*gnu* -*ware -win* info* -*xxx* +*.deb *message *version*If you want substring from center of word, you must separate that word e.g.:
FirstPart*SecondPart => +FirstPart* +*SecondPart -FirstPart*SecondPart => -FirstPart* -*SecondPart
Word Write syntax fuc* => fuc\* or fuc"*" or "fuc*" disket3.5" => disket3.5\" sign"*" => sign\"\*\" or sign\""*"\" +/-30 => \+/-30 or "+/-30" or "+"/-30 windows\ => windows\\ not redy => not\ redy or "not redy" or not" "redyUse quotation-marks ("") to mark more characters exempt backslash sign (\) and quotation-mark (").