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