Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dong ke snippets" » "lao dong ke snippets", "ha dong ke snippets", "bat dong ke snippets", "dao dong kem snippets", "dao dong ket snippets", "dao dong ky 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: (((("dao dong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao dong ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dong ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.