Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc tieu do snippets" » "muc tieu do snippets", "cac tieu do snippets", "cach tieu do snippets", "cuc trieu do snippets", "cuc tien do snippets", "cuc bieu do 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: (((("cuc tieu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuc tieu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc tieu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc tieu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.