Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho dap co snippets" » "cho dao co snippets", "choi dan co snippets", "cho tap co snippets", "cho dau co snippets", "cho da co 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: (((("cho dap co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho dap co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho dap co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho dap co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.