Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"php va cao snippets" » "php va code snippets", "phap va cao snippets", "phap vat cao snippets", "phap van cao snippets", "php va cac snippets", "php va co snippets", "php va dao snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("php va cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("php va cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( php va cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("php va cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.