Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc luat de snippets" » "duoc luat de snippets", "nuoc luat de snippets", "nuoc luan de snippets", "quoc luat ve snippets", "quoc luat ke snippets", "quoc luat 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: (((("quoc luat 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 luat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc luat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc luat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.