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