Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tong cac moi snippets" » "trong cac moi snippets", "thong cac moi snippets", "tong cuc moi snippets", "tong cac mon snippets", "tong cac toi snippets", "tong cac thoi 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 cac moi 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 cac moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong cac moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong cac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.