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