Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cho tre snippets" » "dong cho tre snippets", "cong co tre snippets", "rong cho tre snippets", "cong cho thue snippets", "cong khoe tre 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 cho tre 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 cho tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cho tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cho tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.