Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat mo chon snippets" » "luat moi chon snippets", "luat so chon snippets", "luat bao chon snippets", "luat mo cho snippets", "luat mo phong 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: (((("luat mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat mo chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat mo chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.