Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap voi con snippets" » "phap boi con snippets", "pham voi con snippets", "phap moi con snippets", "phap voi cong snippets", "phap voi chon snippets", "phap voi can 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 voi con 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 voi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap voi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap voi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.