Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom cac cua snippets" » "nam cac cua snippets", "gom cac cua snippets", "ngon cac cua snippets", "nom cach cua snippets", "nom cac qua snippets", "nom ca cua 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: (((("nom cac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nom cac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom cac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom cac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.