Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc cham hoi snippets" » "luc tham hoi snippets", "tuc cham hoi snippets", "phuc cham hoi snippets", "luc cham voi snippets", "luc cham h'roi snippets", "luc pham hoai 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: (((("luc cham hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc cham hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc cham hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc cham hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.