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