Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc mat co snippets" » "duoc ma co snippets", "nuoc mat co snippets", "duoc bat co snippets", "duoc vat co snippets", "duoc mot co 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: (((("duoc mat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc mat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc mat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc mat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.