Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan dao le snippets" » "toan cao le snippets", "toan dam le snippets", "toan dai le snippets", "toan do le snippets", "toan dao ve snippets", "toan hao le 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 dao le 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 dao le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan dao le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan dao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.