Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hon quan den snippets" » "hong quan den snippets", "hoc quan den snippets", "hoa quan den snippets", "hon quan doan snippets", "hon quan he snippets", "hon quan doi 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: (((("hon quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hon quan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hon quan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hon quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.