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