Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so nguoi cho snippets" » "so nguoi co snippets", "so nguoi cao snippets", "so nguoi cham snippets", "soc nguoi cho snippets", "sao nguoi cho snippets", "o nguoi cho 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: (((("so nguoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("so nguoi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so nguoi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so nguoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.