Perhaps you should try some spelling variations:
"lucha con investigacion" » "lucha en investigacion", "lucha foca investigacion", "lucha fcsh investigacion", "lucha por investigacion", "lucha contra investigacion"
"beiras la investigacion" » "beira la investigacion", "beiras ana investigacion", "beiras mas investigacion"
"becas la investigacion" » "secas la investigacion", "brechas la investigacion", "ruecas la investigacion"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("becas la investigacion") OR ("beiras la investigacion"))) or ("lucha con investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("becas la investigacion") OR ("beiras la investigacion"))) OR ("lucha con investigacion"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"becas la investigacion\") OR (\"beiras la investigacion\"))) or (\"lucha con investigacion\"))*".
• Removing quotes may allow a broader search: (((( becas la investigacion ) OR ( beiras la investigacion ))) or ( lucha con investigacion ))*.