Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap cac hon snippets" » "phap cach hon snippets", "phan cac hon snippets", "pha cac hon snippets", "phap cac hop snippets", "phap cac mon snippets", "phap cac don 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: (((("phap cac hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cac hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap cac hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap cac hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.