Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc va do snippets" » "nuoc va do snippets", "duc va do snippets", "duoc ma do snippets", "duoc va dao snippets", "duoc va doc snippets", "duoc va 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 va do 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 va do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc va do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.