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