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