Perhaps you should try some spelling variations:
"code code precoder basic protein" » "code code precedent basic protein" (Expand search), "code coder decoder basic protein" (Expand search), "code to precoder basic protein" (Expand search), "code code precoder based protein" (Expand search), "code cdc precoder basic protein" (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: (("code code precoder basic protein") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code code precoder basic protein\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( code code precoder basic protein ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code code precoder basic protein") OR ("_ python python python programming"))*.