Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac quy khoe snippets" » "cac duy khoe snippets", "cac quy khoa snippets", "cac suc khoe snippets", "cac qua khoe 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 quy khoe 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 quy khoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac quy khoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac quy khoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.