Perhaps you should try some spelling variations:
"decrease highly resistant" » "decrease highly consistent" (Expand Search), "decrease highly relevant" (Expand Search)
"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)

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 highly resistant"))) OR ("decrease host resistance"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"decrease heat resistance\") OR (\"decrease highly resistant\"))) OR (\"decrease host resistance\"))".
• Removing quotes may allow a broader search: (((( decrease heat resistance ) OR ( decrease highly resistant ))) OR ( decrease host resistance )).
• Adding a wildcard symbol may retrieve word variants: (((("decrease heat resistance") OR ("decrease highly resistant"))) OR ("decrease host resistance"))*.