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