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