Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"toc do doi snippets" » "toc dao doi snippets", "toc co doi snippets", "hoc do doi snippets", "toc do dai snippets", "toc do moi snippets", "toc bo doi 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: "((((\"toc do doi snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( toc do doi snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("toc do doi snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.