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