Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao doi toi snippets" » "khao noi toi snippets", "khuan doi toi snippets", "thay doi toi snippets", "khao doi thoi snippets", "khao doi voi snippets", "khao doi moi 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: (((("khao doi toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao doi toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao doi toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao doi toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.