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