Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tong con cac snippets" » "tong cong cac snippets", "trong con cac snippets", "tong cot cac snippets", "tong chon cac snippets", "tong co 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: (((("tong con 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: (((("tong con cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong con cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong con cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.