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"
"hoc using java snippets" » "hoc using data snippets", "shock using java snippets", "hoc ung java snippets", "hoc sinh 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 (\"hoc using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using c snippets ) OR ( hoc using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using c snippets") OR ("hoc using java snippets"))) OR ("locating bug core snippets"))*.