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