Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam don chuc snippets" » "nam cong chuc snippets", "nam dinh chuc snippets", "nam don thuoc snippets", "nam dong chuc snippets", "nam dan chuc snippets", "nam do chuc 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 don chuc 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 don chuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam don chuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam don chuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.