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