Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat ha line snippets" » "nhat hoa line snippets", "nha ha line snippets", "khat ha line snippets", "nhat a line snippets", "nhat ha linh snippets", "nhat bam line 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: (((("nhat ha line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat ha line snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat ha line snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat ha line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.