Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den cong chi snippets" » "dien cong chi snippets", "den dong chi snippets", "len cong chi snippets", "den cong khi snippets", "den cong cho snippets", "den con chi 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: (((("den cong chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den cong chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den cong chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den cong chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.