Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc doi hon snippets" » "cuoc doi hon snippets", "quoc hoi hon snippets", "luoc doi hon snippets", "quoc doi hoa snippets", "quoc doi hoi snippets", "quoc doi phong 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 doi hon 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 doi hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc doi hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc doi hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.