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