Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nin quan cua snippets" » "tin quan cua snippets", "ninh quang cua snippets", "lien quan cua snippets", "nin quan luan snippets", "nin ban cua snippets", "nin gian cua 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: (((("nin quan 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: (((("nin quan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nin quan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nin quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.