Perhaps you should try some spelling variations:
"decrease heat resistance" » "decrease shear resistance" (Expand Search), "decrease plant resistance" (Expand Search), "decrease high resistance" (Expand Search), "release heat resistance" (Expand Search)
"decrease host resistance" » "decrease plant resistance" (Expand Search), "decreases short resistance" (Expand Search)
"decrease wear resistance" » "decrease year resistance" (Expand Search), "decrease near resistance" (Expand Search), "decrease weak resistance" (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: (((("decrease heat resistance") OR ("decrease wear resistance"))) OR ("decrease host resistance"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"decrease heat resistance\") OR (\"decrease wear resistance\"))) OR (\"decrease host resistance\"))".
• Removing quotes may allow a broader search: (((( decrease heat resistance ) OR ( decrease wear resistance ))) OR ( decrease host resistance )).
• Adding a wildcard symbol may retrieve word variants: (((("decrease heat resistance") OR ("decrease wear resistance"))) OR ("decrease host resistance"))*.