Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat ban toi snippets" » "nhat ban toi snippets", "chat ran toi snippets", "cua ban toi snippets", "chat ban thoi snippets", "chat ban moi snippets", "chat ban thi 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: (((("chat ban 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: (((("chat ban toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat ban toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat ban toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.