Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc gi de snippets" » "quoc gia de snippets", "duoc gi de snippets", "quoc hoi de snippets", "quoc ga de snippets", "quoc gi he 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: (((("quoc gi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc gi de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc gi de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc gi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.