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