Hi

Create a object in eng-GB:
Title : vidarenglish
Summary : vezenglish

Then translate that object to norwegian:
Title : vidarnorsk
Summary : veznorsk

In english siteaccess, where you have:

[RegionalSettings]
Locale=eng-GB
ContentObjectLocale=eng-GB
ShowUntranslatedObjects=disabled
SiteLanguageList[]
SiteLanguageList[]=eng-GB
SiteLanguageList[]=fre-FR
SiteLanguageList[]=nor-NO
TextTranslation=disabled

In search field type "vidar", "vidarenglish" will be suggested <--- correct
In search field type "vez", "vezenglish" will be suggested <--- correct

Then, in norwegian siteaccess where you have :

[RegionalSettings]
Locale=nor-NO
ContentObjectLocale=nor-NO
ShowUntranslatedObjects=disabled
SiteLanguageList[]
SiteLanguageList[]=nor-NO
SiteLanguageList[]=eng-GB
TextTranslation=disabled

In search field type "vidar", "vidarenglish" and "vidarnorsk" will be suggested <--- INCORRECT
In search field type "vez", "veznorsk" will be suggested <--- correct