Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban chi con snippets" » "banh chi con snippets", "bao chi con snippets", "ban thi con snippets", "ban chi cong snippets", "ban cho con snippets", "ban khi con 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: (((("ban chi 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: (((("ban chi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban chi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban chi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.