Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac luat chi snippets" » "cap luat chi snippets", "cac xuat chi snippets", "cac thuat chi snippets", "cac luan chi snippets", "cac luat thi snippets", "cac luat cho 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: (((("cac luat chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac luat chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac luat chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac luat chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.