Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den phu chu snippets" » "don phu chu snippets", "bien phu chu snippets", "den thuc chu snippets", "den phu chung snippets", "den phuc chau snippets", "den phap chu 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 phu chu 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 phu chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den phu chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den phu chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.