Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cu lieu hoc snippets" » "cu lieu khoa snippets", "cu li hoc snippets", "du lieu hoc snippets", "tu lieu hoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"cu lieu hoc snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( cu lieu hoc snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cu lieu hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.