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