Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc van da snippets" » "hoc dan da snippets", "hoc va da snippets", "hoc vat da snippets", "hoc van dao snippets", "hoc van dau snippets", "hoc van dan snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc van da snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( hoc van da snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc van da snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.