Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat den coi snippets" » "luat dan coi snippets", "luan den coi snippets", "luat de coi snippets", "luat den voi snippets", "luat den cong 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 den coi 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 den coi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat den coi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat den coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.