Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong luc cua snippets" » "dong luc cua snippets", "hong duc cua snippets", "thong luu cua snippets", "hong luc chua snippets", "hong luc nua snippets", "hong tuc cua 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 luc cua 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 luc cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong luc cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong luc cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.