Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap luu cac snippets" » "phap lua cac snippets", "phap luat cac snippets", "phap luan cac snippets", "phap cuu cac snippets", "phap cuu cach snippets"
"locating bug code snippets" » "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: (((("phap luu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap luu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap luu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap luu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.