Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"san tinh da snippets" » "ban tinh da snippets", "man tinh da snippets", "son tinh da snippets", "san tinh va snippets", "san tinh gia snippets", "san tinh lao 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: (((("san tinh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("san tinh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( san tinh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("san tinh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.