Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc pho chu snippets" » "duc tho chu snippets", "duc phong chu snippets", "duc phan chu snippets", "duc cho chu snippets", "duc ho chu snippets", "duc pho cu 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: (((("duc pho 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: (((("duc pho chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc pho chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc pho chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.