Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh gi he snippets" » "hanh vi he snippets", "danh gia he snippets", "hanh noi he snippets", "hanh gi de snippets", "hanh gi ve 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: (((("hanh gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh gi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh gi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.