Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den chi hoat snippets" » "den che hoat snippets", "den chi hoa snippets", "den phi hoat snippets", "ben chi hoat snippets", "den coi hoat snippets", "den chinh hoat 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 chi hoat 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 chi hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den chi hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den chi hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.