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