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