Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using c snippets" » "python using code snippets", "python using lc snippets", "python using a snippets", "python using _ snippets"
"cho using java snippets" » "cho using data snippets", "cho sinh java snippets", "cho ung java snippets", "h2o using java snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using c snippets\") OR (\"cho using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using c snippets ) OR ( cho using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using c snippets") OR ("cho using java snippets"))) OR ("locating bug core snippets"))*.