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