Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac dai son snippets" » "cac dan son snippets", "cac bai son snippets", "can dai son snippets", "cac dai so snippets", "cac doi song snippets", "cac thai son 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: (((("cac dai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac dai son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac dai son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.