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