Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bot cong coi snippets" » "bo cong coi snippets", "mot cong coi snippets", "bat cong coi snippets", "bot cong co snippets", "bot con coi snippets", "bot cong chi 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: (((("bot cong coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bot cong coi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bot cong coi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bot cong coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.