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