Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom cua da snippets" » "nam cua da snippets", "gom cua da snippets", "noi cua da snippets", "nom cua dan snippets", "nom cua dai snippets", "nom cua dam 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 cua da 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 cua da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom cua da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom cua da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.