Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc sua du snippets" » "duoc si du snippets", "duc suc du snippets", "duoc ma du snippets", "duoc su du snippets", "duoc cua du snippets", "duoc qua du 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 sua du 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 sua du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc sua du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc sua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.