Perhaps you should try some spelling variations:
"discriminaciones positiva y inversas" » "discriminaciones positivas y inversas" (Expand Search), "discriminacion positiva y inversas" (Expand Search), "discriminacion normativa y inversas" (Expand Search), "discriminaciones positiva de inversas" (Expand Search), "discriminaciones positiva en inversas" (Expand Search), "discriminaciones positiva a inversao" (Expand Search)
"discriminacion policial o inversas" » "discriminacion judicial o inversas" (Expand Search), "discriminacion comercial o inversas" (Expand Search), "discriminacion positiva o inversas" (Expand Search), "discriminacion policial y inversas" (Expand Search), "discriminacion policial a inversas" (Expand Search), "discriminacion policial _ inversas" (Expand Search), "discriminacion policial a inversao" (Expand Search)
"discriminacion racial o inversas" » "discriminacion sexual o inversas" (Expand Search), "discriminacion racial a inversao" (Expand Search), "discriminacion racial y inversas" (Expand Search), "discriminacion racial _ inversas" (Expand Search), "discriminacion racial a inversas" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("discriminaciones positiva y inversas") OR ((("discriminacion policial o inversas") OR ("discriminacion racial o inversas"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"discriminaciones positiva y inversas\") OR (((\"discriminacion policial o inversas\") OR (\"discriminacion racial o inversas\"))))".
• Removing quotes may allow a broader search: (( discriminaciones positiva y inversas ) OR ((( discriminacion policial o inversas ) OR ( discriminacion racial o inversas )))).
• Adding a wildcard symbol may retrieve word variants: (("discriminaciones positiva y inversas") OR ((("discriminacion policial o inversas") OR ("discriminacion racial o inversas"))))*.