Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghin ke cho snippets" » "nghin le cho snippets", "nghiep ke cho snippets", "nghi le cho snippets", "nghin keo cho snippets", "nghin ke che snippets", "nghin ke co 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: (((("nghin ke 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: (((("nghin ke cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghin ke cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghin ke cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.