Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc hanh chu snippets" » "hoc hanh chu snippets", "duc hanh chu snippets", "doi hanh chu snippets", "doc thanh chu snippets", "doc hanh che snippets", "doc hanh khu 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: (((("doc hanh chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc hanh chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc hanh chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hanh chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.