Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot benh cua snippets" » "so benh cua snippets", "mot bien cua snippets", "hoc benh cua snippets", "mot benh chua snippets", "mot menh cua snippets", "mot benh luan 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: (((("mot benh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot benh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot benh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot benh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.