Perhaps you should try some spelling variations:
"coder codigo java some problems" » "coder codigo java the problems" (Expand search), "code codigo java some problems" (Expand search), "hover codigo java some problems" (Expand search), "code codigos java some problems" (Expand search), "coder codigo ana some problems" (Expand search), "coder codigo java sobre problems" (Expand search), "coder codigo java code problems" (Expand search), "coder codigo java j2me problems" (Expand search)
"on pitons python python programming" » "on pitons pythons python programming" (Expand search), "on pitons piton python programming" (Expand search), "on pitons pytm python programming" (Expand search), "on prisons python python programming" (Expand search), "_ pitons python python programming" (Expand search), "on pion 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: (("coder codigo java some problems") OR ("on pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder codigo java some problems\") OR (\"on pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder codigo java some problems ) OR ( on pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder codigo java some problems") OR ("on pitons python python programming"))*.