searching from list search value may contains null value

searching from list search value may contains null value

i have to search from collection<List>, during searching, list may or may
not contains null value. but if null value is present it will search from
other searching values.
My code is
List =
ListAssetDetail.Where(
e =>SelectedAsset.Equals(e.AssetName) &&
SlectedBroad.Equals(e.BroadcasterName) &&
SelectedAssetfor.Equals(e.AssetFrom) &&
SelectedGenre.Equals(e.GenreName) &&
SelectedBoque.Equals(e.Subcategory) &&
SelectedContentType.Equals(e.AssetFor)).ToList();