Perhaps you should try some spelling variations:
"learning-based anode imputation techniques" » "learning-based anode implantation technique", "learning-based anode augmentation techniques", "learning-based anode segmentation techniques"
"learning-based code floatation technique" » "learning-based code inhalation technique", "learning-based code implantation technique", "learning-based code truncation technique"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("learning-based anode imputation techniques") or ("learning-based code floatation technique"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("learning-based anode imputation techniques") OR ("learning-based code floatation technique"))*.
• Removing quotes may allow a broader search: (( learning-based anode imputation techniques ) or ( learning-based code floatation technique ))*.