Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe bao le snippets" » "nghe cao le snippets", "nghe ba le snippets", "nghe bac le snippets", "nghe bao ve snippets", "nghe ban le snippets", "nghe dao le 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: (((("nghe bao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe bao le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe bao le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe bao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.