Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"va phan a1 snippets" » "van phan a1 snippets", "va phat a1 snippets", "va phap a1 snippets", "va phan dau snippets", "va phan lap snippets", "va phan van 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: (((("va phan a1 snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( va phan a1 snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va phan a1 snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.