Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat cuu voi snippets" » "chat huu voi snippets", "chat cua voi snippets", "cham cuu voi snippets", "chat cuu hoi snippets", "chat cuu noi snippets", "chat cuu vai 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 cuu voi 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 cuu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat cuu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat cuu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.