Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc thiet de snippets" » "toc thieu de snippets", "hoc thiet de snippets", "soc thiet de snippets", "toc thiet ke snippets", "toc thiet yeu snippets", "toc thuyet de 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: (((("toc thiet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc thiet de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc thiet de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc thiet de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.