Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so gia cac snippets" » "so gian cac snippets", "so giai cac snippets", "so giua cac snippets", "so giao cac snippets", "ho gia cac 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 gia cac 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 gia cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so gia cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so gia cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.