Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dao cho snippets" » "phap day cho snippets", "phap dam cho snippets", "phap dau cho snippets", "phap cao cho snippets", "phap dac cho snippets", "phap dao ho 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 dao cho 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 dao cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dao cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dao cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.