Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngu dao cau snippets" » "ngu dan cau snippets", "nga dao cau snippets", "ngu lao cau snippets", "ngu dat cau snippets", "ngu da cau snippets", "ngu tao cau 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: (((("ngu dao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngu dao cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu dao cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu dao cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.