Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu ran doc snippets" » "chu han doc snippets", "chu van doc snippets", "chu ra doc snippets", "chu tran duc snippets", "chu nang doc snippets", "chu than doc 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: (((("chu ran doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu ran doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu ran doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu ran doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.