Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan do tac snippets" » "phan bo tac snippets", "phan co tac snippets", "phan mo tac snippets", "phan doi tac snippets", "phan do cac snippets", "phan da tac snippets", "phan do tac slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 do tac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( phan do tac snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("phan do tac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.