Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day manh de snippets" » "van manh de snippets", "duc manh de snippets", "ha manh de snippets", "day hanh de snippets", "day manh le snippets", "day menh de 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: (((("day manh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day manh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day manh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day manh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.