Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac han nom snippets" » "tac nhan nom snippets", "tac ha nom snippets", "tac can nom snippets", "tac hanh noi snippets", "tac nhan nam 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: (((("tac han nom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac han nom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac han nom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac han nom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.