Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoa van hac snippets" » "hoa dan hac snippets", "hoang van hac snippets", "hoa phan hac snippets", "hoa van hoc snippets", "hoa van ha snippets", "hoa van hai 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: (((("hoa van hac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( hoa van hac snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoa van hac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.