Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xin tinh doi snippets" » "bien tinh doi snippets", "dien tinh doi snippets", "dinh tinh doi snippets", "xin trinh doc snippets", "xin trinh do snippets", "xin tinh hoc 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: (((("xin tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xin tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xin tinh doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xin tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.