Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban cheo con snippets" » "han che con snippets", "ban co con snippets", "ban chat con snippets", "ban cheo co snippets", "ban cho con snippets", "ban theo cong 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 cheo 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 cheo con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban cheo con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban cheo con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.