Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan dao dong snippets" » "dan lao dong snippets", "dan ha dong snippets", "dan bat dong snippets", "van dao dong snippets", "dan dat dong snippets", "dan da dong 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 dao dong 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 dao dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dao dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.