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