Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dan ke snippets" » "dao van ke snippets", "cao dang ke snippets", "dao dong ke snippets", "dao dan ky snippets", "dao dan ve snippets", "dao ban ke 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 dan 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 dan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.