Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua luc doi snippets" » "cua duc doi snippets", "cua tuc doi snippets", "cua cuc doi snippets", "cua luoc doi snippets", "cua lua doi snippets", "cua luc moi 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: (((("cua luc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua luc doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua luc doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua luc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.