Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tim sach doi snippets" » "tim mach doi snippets", "tin sach doi snippets", "tinh sach doi snippets", "tim sach hoi snippets", "tim sach moi snippets", "tim sach dao 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: (((("python using java snippets") or ("tim sach doi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tim sach doi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tim sach doi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tim sach doi snippets"))) or ("locating bug code snippets"))*.