Perhaps you should try some spelling variations:
"coffee drying using some examples" » "coffee growing using some examples" (Expand search), "coffee farming using some examples" (Expand search), "coffee drying in some examples" (Expand search), "coffee drying using som examples" (Expand search), "coffee drying using soil examples" (Expand search), "coffee drying using soft examples" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (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: (("coffee drying using some examples") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coffee drying using some examples\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coffee drying using some examples ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coffee drying using some examples") OR ("_ python python python programming"))*.