Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son mot cong snippets" » "son moi cong snippets", "son hoc cong snippets", "son bo cong snippets", "sung mot cong snippets", "chon mot cong snippets", "cong mot 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: (((("son mot 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: (((("son mot cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son mot cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son mot cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.