Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan xac du snippets" » "toan ban du snippets", "toan hoc du snippets", "toan tap du snippets", "toan cac du snippets", "toan tac du 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: (((("toan xac du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan xac du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan xac du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan xac du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.