Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc la chet snippets" » "duc la che snippets", "duc cai chet snippets", "duc va chiet snippets", "duc lai chet snippets", "duc lam chet snippets", "duc lan chet 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: (((("duc la chet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc la chet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc la chet snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc la chet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.