Perhaps you should try some spelling variations:
"5 wt decrease" » "5 _ decrease" (Expand Search), "5 ht decrease" (Expand Search), "2 wt decrease" (Expand Search)
"i wt decrease" » "i _ decrease" (Expand Search), "i et decrease" (Expand Search), "2 wt decrease" (Expand Search)
"_ wt decrease" » "_ _ decrease" (Expand Search)
"5 g decrease" » "5 _ decrease" (Expand Search), "5 _ decreased" (Expand Search), "5 _ decreases" (Expand Search), "5 μg decrease" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("5 g decrease") OR ((("5 wt decrease") OR ((("i wt decrease") OR ("_ wt decrease"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"5 g decrease\") OR (((\"5 wt decrease\") OR (((\"i wt decrease\") OR (\"_ wt decrease\"))))))*".
• Removing quotes may allow a broader search: (( 5 g decrease ) OR ((( 5 wt decrease ) OR ((( i wt decrease ) OR ( _ wt decrease ))))))*.