Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xanh cua so snippets" » "manh cua so snippets", "hanh cua so snippets", "anh cua so snippets", "xanh cua sro snippets", "xanh cua bo snippets", "xanh cua su 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: (((("xanh cua so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xanh cua so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xanh cua so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xanh cua so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.