Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"php va thanh snippets" » "php gia thanh snippets", "php ban thanh snippets", "php va tinh snippets", "phap va thanh snippets", "phap vat thanh snippets", "phap van thanh snippets", "php va thanh slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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