Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc danh du snippets" » "quoc khanh du snippets", "cuon danh du snippets", "hoc danh du snippets", "quoc danh dau snippets", "quoc danh tu snippets", "quoc dinh 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 danh 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: (((("quoc danh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc danh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.