Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoat keo can snippets" » "hoa keo can snippets", "xuat keo can snippets", "hat ke can snippets", "hoat keo dan snippets", "hoat kho canh snippets", "hoat keo cung 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: (((("hoat keo can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoat keo can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoat keo can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoat keo can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.