Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hang cho snippets" » "ban hang cho snippets", "van hang cho snippets", "dat hang cho snippets", "dan sang cho snippets", "dan han cho snippets", "dan tang cho 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 hang cho 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 hang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.