Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc cao noi snippets" » "quoc bao noi snippets", "quoc cac noi snippets", "quoc cho noi snippets", "quoc cau noi snippets", "quoc dao noi snippets", "quoc nao noi 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 cao noi 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 cao noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc cao noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc cao noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.