Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong phuc se snippets" » "cong thuc se snippets", "cong chuc se snippets", "cong phu se snippets", "cong phuc sen snippets", "cong phuc su snippets", "cong phuc le 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: (((("cong phuc se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong phuc se snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong phuc se snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong phuc se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.