Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai cho con snippets" » "phai co con snippets", "phap cho con snippets", "phai cuoi con snippets", "phai cho cong snippets", "phai cho lon snippets", "phai cho can 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: (((("phai cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phai cho con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai cho con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.