Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh tong cot snippets" » "anh trong cot snippets", "anh thong cot snippets", "anh dong cot snippets", "anh tong cong snippets", "anh tong hop snippets", "anh dong co 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: (((("anh tong cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh tong cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh tong cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh tong cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.