Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian doan ke snippets" » "gian dan ke snippets", "giai doan ke snippets", "gian don ke snippets", "gian toan ke snippets", "gian doanh ket 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: (((("gian doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian doan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian doan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.