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 voi snippets" » "toc dao voi snippets", "toc co voi snippets", "hoc do voi snippets", "toc doi voi snippets", "toc do moi 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 voi snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( toc do voi snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("toc do voi snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.