Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan chi di snippets" » "luan chi dai snippets", "luan chi pi snippets", "luan chi dinh snippets", "quan chi di snippets", "lan chi di 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: (((("luan chi di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan chi di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan chi di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan chi di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.