Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao li cho snippets" » "dao lai cho snippets", "dao le cho snippets", "dai li cho snippets", "dao li co snippets", "dao ly cho 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 li cho 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 li cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao li cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao li cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.