Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van du hoa snippets" » "van duy hoa snippets", "van dau hoa snippets", "van de hoa snippets", "van duc hoa snippets", "van do hoa snippets", "van du hoc 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: (((("van du hoa snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( van du hoa snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van du hoa snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.